diff --git a/.travis.yml b/.travis.yml
index 5c286a3..09348e3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,7 +18,7 @@ before_script:
   - cmake ..
 
 script:
-  - make -j
+  - make -j4
   - make test
 
 notifications: