diff --git a/builder/image-ros.sh b/builder/image-ros.sh
index ac2a98ae..cb647c4f 100755
--- a/builder/image-ros.sh
+++ b/builder/image-ros.sh
@@ -13,7 +13,7 @@
 # copies or substantial portions of the Software.
 #
 
-set -e # Exit immidiately on non-zero result
+set -ex # exit on error, echo commands
 
 REPO=$1
 REF=$2