diff --git a/.github/workflows/check-commit.yaml b/.github/workflows/check-commit.yaml
index 0c1cefe6bef..86296e5155e 100644
--- a/.github/workflows/check-commit.yaml
+++ b/.github/workflows/check-commit.yaml
@@ -14,7 +14,7 @@ jobs:
       - name: Check commit subject complies with https://github.com/fluent/fluent-bit/blob/master/CONTRIBUTING.md#commit-changes
         uses: gsactions/commit-message-checker@v1
         with:
-          pattern: '^[a-z\-]+\:[ ]{0,1}[a-z]+[a-zA-Z0-9 \-\.\:]+$'
+          pattern: '^[a-z\-_]+\:[ ]{0,1}[a-z]+[a-zA-Z0-9 \-\.\:_]+$'
           error: 'Invalid commit subject. Please refer to: https://github.com/fluent/fluent-bit/blob/master/CONTRIBUTING.md#commit-changes'
           checkAllCommitMessages: 'false'
           excludeDescription: 'true'