diff --git a/.github/workflows/test-valgrind.yml b/.github/workflows/test-valgrind.yml
index fa7f459b6..9e2a90898 100644
--- a/.github/workflows/test-valgrind.yml
+++ b/.github/workflows/test-valgrind.yml
@@ -8,7 +8,7 @@ on:
       - "**.yml" # testing, remove me
       - "**.c"
       - "**.h"
-  pull_request
+  pull_request:
     paths:
       - "**.yml" # testing, remove me
       - "**.c"