diff --git a/parquet/src/lib.rs b/parquet/src/lib.rs
index db5d72634389..a0d66e524103 100644
--- a/parquet/src/lib.rs
+++ b/parquet/src/lib.rs
@@ -15,6 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
+//! Test
 //!
 //! This crate contains the official Native Rust implementation of
 //! [Apache Parquet](https://parquet.apache.org/), part of