diff --git a/.github/workflows/mypy_primer.yml b/.github/workflows/mypy_primer.yml
index a239e733b..9b44c0a42 100644
--- a/.github/workflows/mypy_primer.yml
+++ b/.github/workflows/mypy_primer.yml
@@ -64,11 +64,11 @@ jobs:
         with:
           name: mypy_primer_diff_${{ matrix.shard-index }}
           path: diff_${{ matrix.shard-index }}.txt
-      - if: ${{ matrix.shard-index }} == 0
+      - if: ${{ matrix.shard-index == 0 }}
         name: Save PR number
         run: |
           echo ${{ github.event.pull_request.number }} | tee pr_number.txt
-      - if: ${{ matrix.shard-index }} == 0
+      - if: ${{ matrix.shard-index == 0 }}
         name: Upload PR number
         uses: actions/upload-artifact@v3
         with: