diff --git a/.travis/test_nightly.sh b/.travis/test_nightly.sh
index 43a0fec..19ee864 100755
--- a/.travis/test_nightly.sh
+++ b/.travis/test_nightly.sh
@@ -5,3 +5,6 @@ set -ex
 cargo bench --verbose
 
 cargo test --verbose --manifest-path=macros/Cargo.toml
+
+# Build test for the serde feature
+cargo build --verbose --features "serde"