diff --git a/datafusion/core/tests/fuzz.rs b/datafusion/core/tests/fuzz.rs
index 92646e8b3763..5e94f12b5805 100644
--- a/datafusion/core/tests/fuzz.rs
+++ b/datafusion/core/tests/fuzz.rs
@@ -15,7 +15,10 @@
 // specific language governing permissions and limitations
 // under the License.
 
-/// Run all tests that are found in the `fuzz_cases` directory
+/// Run all tests that are found in the `fuzz_cases` directory.
+/// Fuzz tests are slow and gated behind the `extended_tests` feature.
+/// Run with: cargo test --features extended_tests
+#[cfg(feature = "extended_tests")]
 mod fuzz_cases;
 
 #[cfg(test)]