diff --git a/action.yml b/action.yml
index af4e6e3..469fc8d 100644
--- a/action.yml
+++ b/action.yml
@@ -39,6 +39,7 @@ inputs:
   build-args:
     description: "Docker build args"
     required: false
+    default: ''
 
 runs:
   using: 'composite'
@@ -143,9 +144,9 @@ runs:
         push: ${{ inputs.push }}
         tags: ${{ steps.meta.outputs.TAGS }}
         labels: ${{ inputs.labels }}
-        build-args: ${{ inputs.build-args }}
         cache-from: type=local,src=/opt/docker-cache/.build-cache
         cache-to: type=local,dest=/opt/docker-cache/.build-cache,mode=max
         build-args: |
             "http_proxy='${{ env.http_proxy }}'"
             "https_proxy='${{ env.https_proxy }}'"
+            ${{ inputs.build-args }}