diff --git a/.travis.yml b/.travis.yml
index d0c0a98..d5ef294 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ compiler:
 os:
 - linux
 env:
-  - UPLOADTOOL_SUFFIX=TRAVIS_BRANCH
+  - UPLOADTOOL_SUFFIX=$TRAVIS_BRANCH
 install:
 - echo $HOME
 - echo $PWD