diff --git a/crates/fuzzing/src/lib.rs b/crates/fuzzing/src/lib.rs
index 534c42542d77..dc97644d9c2a 100644
--- a/crates/fuzzing/src/lib.rs
+++ b/crates/fuzzing/src/lib.rs
@@ -39,6 +39,7 @@ pub(crate) fn fuzz_default_config(
     config
         .cranelift_nan_canonicalization(true)
         .wasm_bulk_memory(true)
+        .wasm_reference_types(true)
         .strategy(strategy)?;
     Ok(config)
 }