diff --git a/src/plugins/visualizations/common/content_management/v1/cm_services.ts b/src/plugins/visualizations/common/content_management/v1/cm_services.ts
index 62ae0afc97830..4b1165d357203 100644
--- a/src/plugins/visualizations/common/content_management/v1/cm_services.ts
+++ b/src/plugins/visualizations/common/content_management/v1/cm_services.ts
@@ -29,7 +29,7 @@ const referencesSchema = schema.arrayOf(referenceSchema);
 const visualizeAttributesSchema = schema.object(
   {
     title: schema.string(),
-    description: schema.maybe(schema.string()),
+    description: schema.maybe(schema.nullable(schema.string())),
     version: schema.maybe(schema.number()),
     kibanaSavedObjectMeta: schema.maybe(schema.object({ searchSourceJSON: schema.string() })),
     uiStateJSON: schema.maybe(schema.string()),
diff --git a/x-pack/plugins/lens/common/content_management/v1/cm_services.ts b/x-pack/plugins/lens/common/content_management/v1/cm_services.ts
index c0e09f5041110..22e1af6272978 100644
--- a/x-pack/plugins/lens/common/content_management/v1/cm_services.ts
+++ b/x-pack/plugins/lens/common/content_management/v1/cm_services.ts
@@ -28,7 +28,7 @@ const referencesSchema = schema.arrayOf(referenceSchema);
 const lensAttributesSchema = schema.object(
   {
     title: schema.string(),
-    description: schema.maybe(schema.string()),
+    description: schema.maybe(schema.nullable(schema.string())),
     visualizationType: schema.maybe(schema.string()),
     state: schema.maybe(schema.any()),
     uiStateJSON: schema.maybe(schema.string()),