diff --git a/lib/constants.js b/lib/constants.js
index c2e4180..a528afd 100644
--- a/lib/constants.js
+++ b/lib/constants.js
@@ -192,7 +192,8 @@ export const LANGUAGES = [
   },
   {
     name: 'Nim',
-    module: 'nim'
+    module: 'nimrod',
+    custom: true
   },
   {
     name: 'Pascal',
@@ -292,7 +293,9 @@ const unfold = (f, seed) => {
 if (typeof window !== 'undefined' && typeof window.navigator !== 'undefined') {
   LANGUAGES.forEach((language) => {
     if (language.module) {
-      require(`codemirror/mode/${language.module}/${language.module}`)
+      !language.custom
+        ? require(`codemirror/mode/${language.module}/${language.module}`)
+        : require(`./customModes/${language.module}`)
     }
   })
 }