diff --git a/.travis.yml b/.travis.yml
index b3bc446..41d121b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,7 +7,7 @@ include:
   - rust: stable
     env: FEATURE=with_syntex TRAVIS_RUST_VERSION=stable
   - rust: nightly
-    env: FEATURE=nightly
+    env: FEATURE=nightly TRAVIS_CARGO_NIGHTLY_FEATURE=nightly
 before_script:
 - pip install 'travis-cargo<0.2' --user && export PATH=$HOME/.local/bin:$PATH
 script: