diff --git a/.travis.yml b/.travis.yml
index 1f19d644..02f1955a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,7 +20,7 @@ before_install: true
 matrix:
   allow_failures:
     - php: nightly
-    - 7.4snapshot
+    - php: 7.4snapshot
 
 install:
   - wget http://ftp.gnu.org/gnu/parallel/parallel-20170822.tar.bz2