diff --git a/.travis.yml b/.travis.yml
index c00213975f..de7a6b6ac2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -44,12 +44,12 @@ matrix:
     - php: 5.4
       env: DB=sqlite;TC=caldav
     - php: 5.4
-      env: DB=sqlite;TC=syntax
+      env: DB=sqlite;TC=syntax;TEST_DAV=0
     - php: 5.5
-      env: DB=sqlite;TC=syntax
+      env: DB=sqlite;TC=syntax;TEST_DAV=0
     - php: 5.6
-      env: DB=sqlite;TC=syntax
+      env: DB=sqlite;TC=syntax;TEST_DAV=0
     - php: 7.0
-      env: DB=sqlite;TC=syntax
+      env: DB=sqlite;TC=syntax;TEST_DAV=0
 
   fast_finish: true