diff --git a/build b/build
index 6fc0ce391..9b97f9176 100755
--- a/build
+++ b/build
@@ -3,6 +3,8 @@
 # RUN_SLOW_TESTS, RUN_AWS_TESTS, SKIP_KARMA=1 SHOW_JS_ERRORS=1    PACKAGE=1
 # WORKSPACE=/var/lib/jenkins/jobs/jam-web/workspace
 
+set -e 
+
 export BUNDLE_JOBS=1 # 6, which i want to use, makes the whole server crawl
 
 echo ""
@@ -130,4 +132,4 @@ GEM_SERVER=http://localhost:9000/gems
       echo "Skipping publish since branch is neither master or develop..."
   fi
 
-fi
\ No newline at end of file
+fi