diff --git a/crates/cli-support/src/js/mod.rs b/crates/cli-support/src/js/mod.rs
index 1b176639..931e2c05 100644
--- a/crates/cli-support/src/js/mod.rs
+++ b/crates/cli-support/src/js/mod.rs
@@ -922,7 +922,7 @@ impl<'a> Context<'a> {
             *\n\
             * @returns {{Promise<any>}}\n\
             */\n\
-            export function init \
+            export default function init \
                 (module_or_path: RequestInfo | BufferSource | WebAssembly.Module{}): Promise<any>;
         ",
             memory_doc, memory_param