diff --git a/scripts/1_clean_workspace.sh b/scripts/1_clean_workspace.sh
index fbd9dae..cfe32f7 100755
--- a/scripts/1_clean_workspace.sh
+++ b/scripts/1_clean_workspace.sh
@@ -2,6 +2,6 @@
 cd "$(dirname $0)/.."
 source scripts/env.sh
 
-rm -fr "$WORKSPACE/data_src/*"
-rm -fr "$WORKSPACE/data_dst/*"
-rm -fr "$WORKSPACE/model/*"
+rm -fr $WORKSPACE/data_src/*
+rm -fr $WORKSPACE/data_dst/*
+rm -fr $WORKSPACE/model/*