diff --git a/.travis.yml b/.travis.yml
index 9391a03bd..81ac32afc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,4 +6,4 @@ before_script:
 # for some tests  
   - sudo locale-gen de_DE
   - HPHP_HOME=`pwd` make -j 8
-script: hphp/hhvm/hhvm hphp/test/run --arg --threads 8 quick zend
+script: hphp/hhvm/hhvm hphp/test/run --arg --threads 1 quick zend