diff --git a/serde_test/src/lib.rs b/serde_test/src/lib.rs
index 71eb8396..c6eeb4c6 100644
--- a/serde_test/src/lib.rs
+++ b/serde_test/src/lib.rs
@@ -157,6 +157,7 @@
 
 #![doc(html_root_url = "https://docs.rs/serde_test/1.0.18")]
 
+#![cfg_attr(feature = "cargo-clippy", deny(clippy))]
 #![cfg_attr(feature = "cargo-clippy", allow(float_cmp))]
 
 #[macro_use]
diff --git a/travis.sh b/travis.sh
index a936554d..c498462e 100755
--- a/travis.sh
+++ b/travis.sh
@@ -34,6 +34,9 @@ if [ -n "${CLIPPY}" ]; then
     cd "$DIR/serde_derive"
     cargo clippy -- -Dclippy
 
+    cd "$DIR/serde_test"
+    cargo clippy -- -Dclippy
+
     cd "$DIR/test_suite"
     cargo clippy --features unstable -- -Dclippy