diff --git a/.github/workflows/test-aws.yaml b/.github/workflows/test-aws.yaml
index d5b7eff..6f73d7f 100644
--- a/.github/workflows/test-aws.yaml
+++ b/.github/workflows/test-aws.yaml
@@ -44,7 +44,7 @@ jobs:
         uses: actions/cache@v3
         with:
           path: ~/go/pkg/mod
-          key: ${{ runner.os }}-go-${{ hashFiles("${{ env.testdir }}/go.sum") }}
+          key: ${{ runner.os }}-go-${{ hashFiles(${{ env.testdir }}/go.sum) }}
           restore-keys: |
             ${{ runner.os }}-go-
       - name: Download Go modules