diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 6889577df..511206df8 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -427,7 +427,7 @@ jobs:
     name: Test flakyness
     runs-on: ubuntu-latest
     container:
-      image: ${{ inputs.fail_test_image_name }}:${{ inputs.pg15_version }}-${{ inputs.image_suffix }}
+      image: ${{ inputs.fail_test_image_name }}:${{ inputs.pg15_version }}${{ inputs.image_suffix }}
       options: --user root
     env:
       runs: 8