diff --git a/.travis.yml b/.travis.yml
index c1a231eb3f1..31c720e58e9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -291,11 +291,11 @@ script:
 - |
   echo "Checking coding style"
   # Ensure we catch errors
-  #set -e
+  set -e
   # Exclusions are defined in the ruleset.xml file
   #phpcs -s -n -p -d memory_limit=-1 --colors --tab-width=4 --standard=dev/setup/codesniffer/ruleset.xml --encoding=utf-8 .
   phpcs -s -p -d memory_limit=-1 --colors --tab-width=4 --standard=dev/setup/codesniffer/ruleset.xml --encoding=utf-8 --runtime-set ignore_warnings_on_exit true .
-  #set +e
+  set +e
   echo
 
 # TODO: Check Javascript (jshint?)