diff --git a/PaddleCV/rcnn/pretrained/download.sh b/PaddleCV/rcnn/pretrained/download.sh
index cb9255e76b0e70c141496df8ba7592d73bfdea1f..d6a28f28551e37e2110f78669fd812d73a52778b 100644
--- a/PaddleCV/rcnn/pretrained/download.sh
+++ b/PaddleCV/rcnn/pretrained/download.sh
@@ -1,4 +1,4 @@
-DIR="$(dirname "$PWD -P")"
+DIR="$( cd "$(dirname "$0")" )"
 cd "$DIR"
 
 # Download the data.