diff --git a/.travis.yml b/.travis.yml
index 361675eab..9b95ce90e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,6 @@ language: python
 python: 
     3.6
 install:
-    pip install requirements.txt
+    pip install -r requirements.txt
 script:
     python3 scripts/pretty.py