diff --git a/.travis.yml b/.travis.yml
index 47f3462fe02..079f2bbd927 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -163,7 +163,7 @@ script:
         # We need the official upstream for comparison
         git remote add upstream https://github.com/moodle/moodle.git;
 
-        git fetch upstream master;
+        git fetch upstream MOODLE_31_STABLE;
         export GIT_PREVIOUS_COMMIT="`git merge-base FETCH_HEAD $TRAVIS_COMMIT`";
         export GIT_COMMIT="$TRAVIS_COMMIT";
         export UPSTREAM_FETCH_HEAD=`git rev-parse FETCH_HEAD`