diff --git a/plugins/action/ci_script.py b/plugins/action/ci_script.py
index e24151ade9..73f94a9f3a 100644
--- a/plugins/action/ci_script.py
+++ b/plugins/action/ci_script.py
@@ -194,7 +194,7 @@ def run(self, tmp=None, task_vars=None):
         t_name = (
             re.sub(r"[^A-Za-z0-9_]+", "_", self._task.name)
             .lower()[:30]
-            .rsplit("_", 1)[0]
+            .rstrip("_")
         )
         chdir_path = task_args.get("chdir", None)
         log_path = output_dir.parent.joinpath(