diff --git a/mlir/include/mlir/Dialect/Async/Passes.td b/mlir/include/mlir/Dialect/Async/Passes.td
--- a/mlir/include/mlir/Dialect/Async/Passes.td
+++ b/mlir/include/mlir/Dialect/Async/Passes.td
@@ -51,7 +51,7 @@
            "Rewrite functions with blocking async.runtime.await as coroutines "
            "with async.runtime.await_and_resume.">,
   ];
-  let dependentDialects = ["async::AsyncDialect"];
+  let dependentDialects = ["async::AsyncDialect", "func::FuncDialect"];
 }
 
 def AsyncRuntimeRefCounting : Pass<"async-runtime-ref-counting"> {