diff --git a/action.yml b/action.yml
index ca63693..037f2d5 100644
--- a/action.yml
+++ b/action.yml
@@ -4,6 +4,9 @@ inputs:
   repository:
     description: 'Repository name with owner. For example, actions/checkout'
     default: ${{ github.repository }}
+  server:
+    description: 'GIT Server to clone from'
+    default: git.netzkommune.de
   token:
     description: >
       Personal access token (PAT) used to fetch the repository. The PAT is configured
@@ -22,4 +25,4 @@ runs:
         pwd >> "$GITHUB_OUTPUT"
         ls -la >> "$GITHUB_OUTPUT"
         env >> "$GITHUB_OUTPUT"
-        git clone https://${GITHUB_ACTOR}:${{ inputs.token }}@${GITHUB_SERVER_URL}/${{ inputs.repository}}
+        git clone https://${GITHUB_ACTOR}:${{ inputs.token }}@${{ inputs.server }}/${{ inputs.repository}}