diff --git a/.travis.yml b/.travis.yml
index 7218e18..2cd73cb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -26,7 +26,7 @@ env:
     - MOODLE_BRANCH=MOODLE_35_STABLE
     - MOODLE_BRANCH=MOODLE_36_STABLE
     - MOODLE_BRANCH=MOODLE_37_STABLE
-    - MOODLE_BRANCH=MASTER
+    - MOODLE_BRANCH=master
 
   matrix:
     - DB=pgsql