diff --git a/.gitea/workflows/build-container.yaml b/.gitea/workflows/build-container.yaml
index 63334e2..30eccd6 100644
--- a/.gitea/workflows/build-container.yaml
+++ b/.gitea/workflows/build-container.yaml
@@ -24,11 +24,13 @@ on:
 
 env:
   IMAGE_NAME: zola-pwsh-s3
-  REGISTRY: ${{ gitea.server_url }}
 
 jobs:
   build-container:
     runs-on: ubuntu-latest
+    env:
+      # Strip protocol from server URL for registry usage
+      REGISTRY: ${{ replace(gitea.server_url, 'https://', '') }}
 
     steps:
       - name: Checkout repository