diff --git a/entrypoint.sh b/entrypoint.sh
index 1d4010a..a92ea4f 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -4,5 +4,6 @@
 set -eux
 
 cd "$GITHUB_WORKSPACE"
-CONTENT=$(git log --oneline --decorate $INPUT_BASE_REF..$INPUT_HEAD_REF --format=%B -n 1)
+dir
+CONTENT=$(git log --oneline --decorate $INPUT_BASE_REF'..'$INPUT_HEAD_REF --format=%B -n 1)
 echo ::set-output name=changelog::$CONTENT