diff --git a/entrypoint.sh b/entrypoint.sh
index c310c05..6bb1cbc 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -103,7 +103,7 @@ _check_if_is_git_repository() {
 _check_if_repository_is_in_detached_state() {
     if [ -z "$(git symbolic-ref HEAD)" ]
     then
-        _log "error" "Repository is in detached HEAD state. Please checkout a branch before committing.";
+        _log "error" "Repository is in detached HEAD state. Please make sure you check out a branch. Adjust the `ref` input accordingly.";
         exit 1;
     else
         _log "debug" "Repository is on a branch.";
diff --git a/tests/git-auto-commit.bats b/tests/git-auto-commit.bats
index 2e74075..fa2e26b 100644
--- a/tests/git-auto-commit.bats
+++ b/tests/git-auto-commit.bats
@@ -1107,5 +1107,5 @@ END
     run git_auto_commit
 
     assert_failure;
-    assert_line "::error::Repository is in detached HEAD state. Please checkout a branch before committing."
+    assert_line "::error::Repository is in detached HEAD state. Please make sure you check out a branch. Adjust the `ref` input accordingly."
 }