diff --git a/.travis.yml b/.travis.yml
index ac5dcd74..ffc7cfa5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,9 +24,9 @@ script:
     - cargo build --verbose --features arbitrary
     - cargo build --verbose --features serde-serialize
     - cargo build --verbose --features abomonation-serialize
-    - cargo test --verbose --features "arbitrary serde-serialize abomonation-serialize"
+    - cargo test --verbose --features "debug arbitrary serde-serialize abomonation-serialize"
     - cd nalgebra-lapack; cargo test --verbose
 
 env:
   matrix:
-    - CARGO_FEATURE_SYSTEM_NETLIB=1 CARGO_FEATURE_EXCLUDE_LAPACKE=1 CARGO_FEATURE_EXCLUDE_CBLAS=1
\ No newline at end of file
+    - CARGO_FEATURE_SYSTEM_NETLIB=1 CARGO_FEATURE_EXCLUDE_LAPACKE=1 CARGO_FEATURE_EXCLUDE_CBLAS=1