diff --git a/.travis.yml b/.travis.yml
index 75db11f44..35d5f76d9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,7 +24,7 @@ jobs:
       install:
         - cargo fetch --locked
       script:
-        - cargo test --frozen
+        - cargo test --frozen --no-default-features
 
     - language: go
       # XXX; The "1.10" must be quoted or it will get intrepreted as 1.1. See