diff --git a/src/lib/components/Keyboard.ts b/src/lib/components/Keyboard.ts
index 962ae09b..0f16a1e0 100644
--- a/src/lib/components/Keyboard.ts
+++ b/src/lib/components/Keyboard.ts
@@ -1614,7 +1614,9 @@ class SimpleKeyboard {
   loadModules() {
     if (Array.isArray(this.options.modules)) {
       this.options.modules.forEach((KeyboardModule) => {
-        const keyboardModule = new KeyboardModule(this);
+        const keyboardModule = this.utilities.isConstructor(KeyboardModule) ?
+          new KeyboardModule(this) : KeyboardModule(this);
+
         keyboardModule.init && keyboardModule.init(this);
       });
 
diff --git a/src/lib/services/Utilities.ts b/src/lib/services/Utilities.ts
index 05634428..3a5f9b09 100644
--- a/src/lib/services/Utilities.ts
+++ b/src/lib/services/Utilities.ts
@@ -561,6 +561,18 @@ class Utilities {
    * Reusable empty function
    */
   static noop = () => {};
+
+  /**
+   * Check if a function is a constructor
+   */
+  isConstructor(f: any) {
+    try {
+      Reflect.construct(String, [], f);
+    } catch (e) {
+      return false;
+    }
+    return true;
+  }
 }
 
 export default Utilities;