diff --git a/crates/cli-support/src/js/mod.rs b/crates/cli-support/src/js/mod.rs
index cecf43499887..977d133dff72 100644
--- a/crates/cli-support/src/js/mod.rs
+++ b/crates/cli-support/src/js/mod.rs
@@ -451,7 +451,15 @@ impl<'a> Context<'a> {
             OutputMode::Bundler { .. } | OutputMode::Node { module: true } => {
                 for (id, js) in crate::sorted_iter(&self.wasm_import_definitions) {
                     let import = self.module.imports.get_mut(*id);
-                    import.module = format!("./{}_bg.js", module_name);
+                    import.module = format!(
+                        "./{}_bg.{}",
+                        module_name,
+                        if self.config.mode.nodejs() {
+                            "jsm"
+                        } else {
+                            "js"
+                        }
+                    );
                     if let Some(body) = js.strip_prefix("function") {
                         footer.push_str("\nexport function ");
                         footer.push_str(&import.name);