diff --git a/f/ansible-playbook.json b/f/ansible-playbook.json
index fbc2cf7b..4096af4a 100644
--- a/f/ansible-playbook.json
+++ b/f/ansible-playbook.json
@@ -195,8 +195,8 @@
           "type": "array"
         },
         "run_once": {
-          "title": "Run Once",
-          "type": "boolean"
+          "$ref": "#/definitions/templated-boolean",
+          "title": "Run Once"
         },
         "tags": {
           "anyOf": [
@@ -455,8 +455,8 @@
           "type": "array"
         },
         "run_once": {
-          "title": "Run Once",
-          "type": "boolean"
+          "$ref": "#/definitions/templated-boolean",
+          "title": "Run Once"
         },
         "serial": {
           "anyOf": [
@@ -640,8 +640,8 @@
           "type": "string"
         },
         "run_once": {
-          "title": "Run Once",
-          "type": "boolean"
+          "$ref": "#/definitions/templated-boolean",
+          "title": "Run Once"
         },
         "tags": {
           "anyOf": [
@@ -867,8 +867,8 @@
           "type": "integer"
         },
         "run_once": {
-          "title": "Run Once",
-          "type": "boolean"
+          "$ref": "#/definitions/templated-boolean",
+          "title": "Run Once"
         },
         "tags": {
           "anyOf": [
diff --git a/f/ansible-tasks.json b/f/ansible-tasks.json
index 7b12a26a..936cf164 100644
--- a/f/ansible-tasks.json
+++ b/f/ansible-tasks.json
@@ -195,8 +195,8 @@
           "type": "array"
         },
         "run_once": {
-          "title": "Run Once",
-          "type": "boolean"
+          "$ref": "#/definitions/templated-boolean",
+          "title": "Run Once"
         },
         "tags": {
           "anyOf": [
@@ -455,8 +455,8 @@
           "type": "array"
         },
         "run_once": {
-          "title": "Run Once",
-          "type": "boolean"
+          "$ref": "#/definitions/templated-boolean",
+          "title": "Run Once"
         },
         "serial": {
           "anyOf": [
@@ -640,8 +640,8 @@
           "type": "string"
         },
         "run_once": {
-          "title": "Run Once",
-          "type": "boolean"
+          "$ref": "#/definitions/templated-boolean",
+          "title": "Run Once"
         },
         "tags": {
           "anyOf": [
@@ -867,8 +867,8 @@
           "type": "integer"
         },
         "run_once": {
-          "title": "Run Once",
-          "type": "boolean"
+          "$ref": "#/definitions/templated-boolean",
+          "title": "Run Once"
         },
         "tags": {
           "anyOf": [
diff --git a/f/ansible.json b/f/ansible.json
index 689fd236..994c31c1 100644
--- a/f/ansible.json
+++ b/f/ansible.json
@@ -187,8 +187,8 @@
           "type": "array"
         },
         "run_once": {
-          "title": "Run Once",
-          "type": "boolean"
+          "$ref": "#/definitions/templated-boolean",
+          "title": "Run Once"
         },
         "tags": {
           "anyOf": [
@@ -441,8 +441,8 @@
           "type": "array"
         },
         "run_once": {
-          "title": "Run Once",
-          "type": "boolean"
+          "$ref": "#/definitions/templated-boolean",
+          "title": "Run Once"
         },
         "serial": {
           "anyOf": [
@@ -624,8 +624,8 @@
           "type": "string"
         },
         "run_once": {
-          "title": "Run Once",
-          "type": "boolean"
+          "$ref": "#/definitions/templated-boolean",
+          "title": "Run Once"
         },
         "tags": {
           "anyOf": [
@@ -838,8 +838,8 @@
           "type": "integer"
         },
         "run_once": {
-          "title": "Run Once",
-          "type": "boolean"
+          "$ref": "#/definitions/templated-boolean",
+          "title": "Run Once"
         },
         "tags": {
           "anyOf": [
diff --git a/negative_test/playbooks/run_once_list.yml b/negative_test/playbooks/run_once_list.yml
new file mode 100644
index 00000000..0dd2cd55
--- /dev/null
+++ b/negative_test/playbooks/run_once_list.yml
@@ -0,0 +1,8 @@
+- hosts: localhost
+  tasks:
+    - name: foo2
+      ansible.builtin.debug:
+        msg: foo!
+      run_once: # invalid due to schema, also ansible does not allow lists
+        - "{{ true }}"
+        - xxx
diff --git a/negative_test/playbooks/run_once_list.yml.md b/negative_test/playbooks/run_once_list.yml.md
new file mode 100644
index 00000000..817c989d
--- /dev/null
+++ b/negative_test/playbooks/run_once_list.yml.md
@@ -0,0 +1,170 @@
+# ajv errors
+
+```json
+[
+  {
+    "instancePath": "/0",
+    "keyword": "required",
+    "message": "must have required property 'ansible.builtin.import_playbook'",
+    "params": {
+      "missingProperty": "ansible.builtin.import_playbook"
+    },
+    "schemaPath": "#/definitions/ansible.builtin.import_playbook/oneOf/0/required"
+  },
+  {
+    "instancePath": "/0",
+    "keyword": "required",
+    "message": "must have required property 'import_playbook'",
+    "params": {
+      "missingProperty": "import_playbook"
+    },
+    "schemaPath": "#/definitions/ansible.builtin.import_playbook/oneOf/1/required"
+  },
+  {
+    "instancePath": "/0",
+    "keyword": "oneOf",
+    "message": "must match exactly one schema in oneOf",
+    "params": {
+      "passingSchemas": null
+    },
+    "schemaPath": "#/definitions/ansible.builtin.import_playbook/oneOf"
+  },
+  {
+    "instancePath": "/0",
+    "keyword": "additionalProperties",
+    "message": "must NOT have additional properties",
+    "params": {
+      "additionalProperty": "hosts"
+    },
+    "schemaPath": "#/definitions/ansible.builtin.import_playbook/additionalProperties"
+  },
+  {
+    "instancePath": "/0",
+    "keyword": "additionalProperties",
+    "message": "must NOT have additional properties",
+    "params": {
+      "additionalProperty": "tasks"
+    },
+    "schemaPath": "#/definitions/ansible.builtin.import_playbook/additionalProperties"
+  },
+  {
+    "instancePath": "/0/tasks/0/run_once",
+    "keyword": "type",
+    "message": "must be boolean",
+    "params": {
+      "type": "boolean"
+    },
+    "schemaPath": "#/oneOf/0/type"
+  },
+  {
+    "instancePath": "/0/tasks/0/run_once",
+    "keyword": "type",
+    "message": "must be string",
+    "params": {
+      "type": "string"
+    },
+    "schemaPath": "#/oneOf/1/type"
+  },
+  {
+    "instancePath": "/0/tasks/0/run_once",
+    "keyword": "type",
+    "message": "must be string",
+    "params": {
+      "type": "string"
+    },
+    "schemaPath": "#/definitions/full-jinja/type"
+  },
+  {
+    "instancePath": "/0/tasks/0/run_once",
+    "keyword": "oneOf",
+    "message": "must match exactly one schema in oneOf",
+    "params": {
+      "passingSchemas": null
+    },
+    "schemaPath": "#/oneOf"
+  },
+  {
+    "instancePath": "/0/tasks/0",
+    "keyword": "required",
+    "message": "must have required property 'block'",
+    "params": {
+      "missingProperty": "block"
+    },
+    "schemaPath": "#/required"
+  },
+  {
+    "instancePath": "/0/tasks/0/run_once",
+    "keyword": "type",
+    "message": "must be boolean",
+    "params": {
+      "type": "boolean"
+    },
+    "schemaPath": "#/oneOf/0/type"
+  },
+  {
+    "instancePath": "/0/tasks/0/run_once",
+    "keyword": "type",
+    "message": "must be string",
+    "params": {
+      "type": "string"
+    },
+    "schemaPath": "#/oneOf/1/type"
+  },
+  {
+    "instancePath": "/0/tasks/0/run_once",
+    "keyword": "type",
+    "message": "must be string",
+    "params": {
+      "type": "string"
+    },
+    "schemaPath": "#/definitions/full-jinja/type"
+  },
+  {
+    "instancePath": "/0/tasks/0/run_once",
+    "keyword": "oneOf",
+    "message": "must match exactly one schema in oneOf",
+    "params": {
+      "passingSchemas": null
+    },
+    "schemaPath": "#/oneOf"
+  },
+  {
+    "instancePath": "/0/tasks/0",
+    "keyword": "anyOf",
+    "message": "must match a schema in anyOf",
+    "params": {},
+    "schemaPath": "#/items/anyOf"
+  },
+  {
+    "instancePath": "/0",
+    "keyword": "oneOf",
+    "message": "must match exactly one schema in oneOf",
+    "params": {
+      "passingSchemas": null
+    },
+    "schemaPath": "#/items/oneOf"
+  }
+]
+```
+
+# check-jsonschema
+
+stdout:
+
+```json
+{
+  "status": "fail",
+  "errors": [
+    {
+      "filename": "negative_test/playbooks/run_once_list.yml",
+      "path": "$[0]",
+      "message": "{'hosts': 'localhost', 'tasks': [{'name': 'foo2', 'ansible.builtin.debug': {'msg': 'foo!'}, 'run_once': ['{{ true }}', 'xxx']}]} is not valid under any of the given schemas",
+      "has_sub_errors": true,
+      "best_match": {
+        "path": "$[0]",
+        "message": "'hosts', 'tasks' do not match any of the regexes: '^(ansible\\\\.builtin\\\\.)?import_playbook$', 'name', 'vars'"
+      }
+    }
+  ]
+}
+```
diff --git a/test/playbooks/run_once.yml b/test/playbooks/run_once.yml
new file mode 100644
index 00000000..be36c8e1
--- /dev/null
+++ b/test/playbooks/run_once.yml
@@ -0,0 +1,6 @@
+- hosts: localhost
+  tasks:
+    - name: foo2
+      ansible.builtin.debug:
+        msg: foo!
+      run_once: "{{ true }}" # valid
diff --git a/test/playbooks/tasks/run_once.yml b/test/playbooks/tasks/run_once.yml
new file mode 100644
index 00000000..0f3f6f71
--- /dev/null
+++ b/test/playbooks/tasks/run_once.yml
@@ -0,0 +1,9 @@
+- name: foo
+  ansible.builtin.debug:
+    msg: foo!
+  run_once: true # valid
+
+- name: foo2
+  ansible.builtin.debug:
+    msg: foo!
+  run_once: "{{ true }}" # valid