diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index fa3303cce..7fd22e5c1 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -136,7 +136,7 @@ jobs:
         run: echo "::set-output name=hash::$(git rev-parse HEAD)"
       - name: convert hash to number
         id: seed
-        run: echo "::set-output name=number::$(printf '%d' 0x${GITHUB_SHA:0:8})"    
+        run: echo "::set-output name=number::$(printf '%d' 0x${steps.commit.outputs.hash:0:8})"
       - name: build
         run: zig build -Doptimize=ReleaseSafe -Dno-run fuzz
       - name: run