1 files changed, 2 insertions, 2 deletions
diff --git a/lib/module-trampoline.js b/lib/module-trampoline.js
index 73e8ca72d..3eb94e36a 100644
--- a/lib/module-trampoline.js
+++ b/lib/module-trampoline.js
@@ -35,7 +35,7 @@ System.config({
 
 // Register mithril as a module,
 // but only if it is ambient.
-if (m) {
+if (typeof m !== "undefined") {
   let mod = System.newModule({default: m});
   let modName = "mithril";
   System.set(modName, mod);
@@ -55,7 +55,7 @@ document.addEventListener("DOMContentLoaded", function(event) {
 function execMain(m) {
   if (m.main) {
     console.log("executing module main");
-    m.main();
+    let res = m.main();
   } else {
     console.warn("module does not export a main() function");
   }