diff --git a/.gitea/workflows/frontend.yaml b/.gitea/workflows/frontend.yaml
index db354c8..9b5cdc5 100644
--- a/.gitea/workflows/frontend.yaml
+++ b/.gitea/workflows/frontend.yaml
@@ -29,6 +29,12 @@ jobs:
         with:
           node-version: '22.16.0'
 
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '21'
+
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
         with:
diff --git a/legalconsenthub-backend/build.gradle b/legalconsenthub-backend/build.gradle
index 8369848..2b19f35 100644
--- a/legalconsenthub-backend/build.gradle
+++ b/legalconsenthub-backend/build.gradle
@@ -103,3 +103,4 @@ task generate_legalconsenthub_server(type: org.openapitools.generator.gradle.plu
 }
 
 compileKotlin.dependsOn(tasks.generate_legalconsenthub_server)
+runKtlintCheckOverMainSourceSet.dependsOn(generate_legalconsenthub_server)