diff --git a/functions b/functions
index b7d97eaaa..099101540 100644
--- a/functions
+++ b/functions
@@ -195,5 +195,5 @@ function timestamp_puppet_log() {
 }
 
 function catch_puppet_failures() {
-    grep -wiE '(Error|\(err\))' ${WORKSPACE}/puppet.log
+    $SUDO grep -wiE '(Error|\(err\))' ${WORKSPACE}/puppet.log
 }