diff --git a/.travis.yml b/.travis.yml
index 89de2a4d..ce8d9f13 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -31,7 +31,7 @@ before_script:
 script:
 - |
   travis-cargo build &&
-  travis-cargo test
+  travis-cargo test --features=test
 
 env:
   global:
diff --git a/Cargo.toml b/Cargo.toml
index 446d6e07..9782f9c4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,3 +14,6 @@ license = "MIT"
 [dependencies]
 ruby-sys = "0.3.0"
 lazy_static = "0.2.1"
+
+[features]
+test = ["ruby-sys/test"]