diff --git a/.travis.yml b/.travis.yml
index a1bcc0a4..10710849 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,6 +10,7 @@ branches:
     - master
     - /^bzub-.*$/
     - /^v\d+\.\d+(\.\d+)?(-\S*)?$/
+    - /^PR\d*$/
 
 env:
   global: