diff --git a/cmd/cd-build-project.sh b/cmd/cd-build-project.sh
index 8a5035b..460566e 100755
--- a/cmd/cd-build-project.sh
+++ b/cmd/cd-build-project.sh
@@ -1,7 +1,9 @@
 if [ -x './build.py' ] ; then
-    ./build.py
+    ./build.py \
+    || exit
 elif [ -x './build.sh' ] ; then
-    ./build.sh
+    ./build.sh \
+    || exit
 else
     exit
 fi