diff --git a/tools/deploy/copy.sh b/tools/deploy/copy.sh
index c7e493f8f6..70701f9050 100755
--- a/tools/deploy/copy.sh
+++ b/tools/deploy/copy.sh
@@ -6,8 +6,7 @@ then
   BUILD_DIR=$(find $SOURCE_DIR -maxdepth 1 -name 'build_*' -type d | grep -v 'build_ccls'  | sort | head -1)
   if [[ "$BUILD_DIR" == "" ]]
   then
-    echo "Please specify the build directory of oceanbase."
-    exit 1
+    echo "Usage ./copy.sh [oceanbase_dev_dir]"
   else
     echo "Choose $BUILD_DIR as build directory of oceanbase."
   fi