diff --git a/.travis.yml b/.travis.yml
index ff17fd05..d37f5efc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,3 +6,4 @@ rvm:
 before_install:
  - sudo apt-get update
  - sudo apt-get install libicu-dev
+ - git config --global --add diff.renames copies