diff --git a/.gitea/limbo_actions/buildkit-build-push/action.yaml b/.gitea/limbo_actions/buildkit-build-push/action.yaml
index 7f536fe..d1233b1 100644
--- a/.gitea/limbo_actions/buildkit-build-push/action.yaml
+++ b/.gitea/limbo_actions/buildkit-build-push/action.yaml
@@ -48,6 +48,7 @@ runs:
 
         # setup file docker config (auth) temp file
         AUTH=$(printf "%s" "${{ inputs.registry_username }}:${{ inputs.registry_password }}" | base64 -w 0)
+        
         cat > "$DOCKER_CONFIG_DIR/config.json" <<EOF
         {
           "auths": {
@@ -67,7 +68,6 @@ runs:
 
         echo "Using build args: $BUILD_ARG_FLAGS"
 
-        # Run BuildKit build
         DOCKER_CONFIG=$DOCKER_CONFIG_DIR buildctl \
           --addr ${{ inputs.buildkit_addr }} \
           build \
@@ -76,6 +76,4 @@ runs:
           --local dockerfile=${{ inputs.dockerfile }} \
           --opt filename=${{ inputs.filename }} \
           $BUILD_ARG_FLAGS \
-          --output type=image,name=${{ inputs.tags }},push=true
-
-              
+          --output type=image,name=${{ inputs.tags }},push=true,registry.auth=$AUTH
\ No newline at end of file