diff --git a/tools/run.sh b/tools/run.sh
index 950e0cd3ac9e49daa9aacb7c3441d74ccd34ecf3..14fd4ecd4714193dea523a45cf61ee00b2e54cf8 100644
--- a/tools/run.sh
+++ b/tools/run.sh
@@ -1,3 +1,5 @@
+#!/usr/bin/env bash
+
 export PYTHONPATH=$(dirname "$PWD"):$PWD:$PYTHONPATH
 
 python -m paddle.distributed.launch \