diff --git a/.github/workflows/CI-workflows.yaml b/.github/workflows/CI-workflows.yaml
index 50cb1cc4..8f9046a0 100644
--- a/.github/workflows/CI-workflows.yaml
+++ b/.github/workflows/CI-workflows.yaml
@@ -33,7 +33,7 @@ jobs:
         continue-on-error: ${{ github.ref != 'refs/heads/main' }}
 
       - name: Run phpmd
-        run: phpmd src text phpmd.xml --not-strict
+        run: phpmd src xml phpmd.xml --not-strict
         continue-on-error: ${{ github.ref != 'refs/heads/main' }}
 
       - name: Install Composer dependencies
diff --git a/phpmd.xml b/phpmd.xml
new file mode 100644
index 00000000..7c1724fc
--- /dev/null
+++ b/phpmd.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+<ruleset name="MyProject Rules"
+    xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0
+                        http://pmd.sourceforge.net/ruleset_xml_schema.xsd"
+    xsi:noNamespaceSchemaLocation="http://pmd.sourceforge.net/ruleset_xml_schema.xsd">
+
+    <description>
+        This is a custom ruleset for OpenCatalogi Nextcloud.
+    </description>
+
+    <!-- Add the rules you want to use here -->
+    <rule ref="rulesets/design.xml"/>
+    <rule ref="rulesets/unusedcode.xml"/>
+    <rule ref="rulesets/naming.xml"/>
+    <rule ref="rulesets/cleancode.xml"/>
+    <rule ref="rulesets/codesize.xml"/>
+    <rule ref="rulesets/controversial.xml"/>
+    <rule ref="rulesets/codesize.xml/ExcessiveClassLength"/>
+    <rule ref="rulesets/codesize.xml/ExcessiveMethodLength"/>
+    <rule ref="rulesets/codesize.xml/ExcessiveParameterList"/>
+    <rule ref="rulesets/codesize.xml/TooManyFields"/>
+    <rule ref="rulesets/codesize.xml/TooManyMethods"/>
+</ruleset>