diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 65f63b8c5..3ddceb709 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -165,4 +165,4 @@ jobs:
     - name: Check Submodules
       env:
         ACTION_VERSION: ${{ env.BUILDER_VERSION }}
-      uses: awslabs/aws-crt-builder/.github/actions/check-submodules@${ ACTION_VERSION }
+      uses: awslabs/aws-crt-builder/.github/actions/check-submodules@${{ ACTION_VERSION }}