diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index f1b8e5eb2..bcce99464 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -36,7 +36,7 @@ jobs:
           name: bench-baseline.json
           path: out/bench.json
   compare:
-    runs_on: ubuntu-latest
+    runs-on: ubuntu-latest
     defaults:
       run:
         working-directory: libs/langgraph