diff --git a/apps/remix-ide/src/app/editor/editor.js b/apps/remix-ide/src/app/editor/editor.js
index 49922c8ba0..996eeedf17 100644
--- a/apps/remix-ide/src/app/editor/editor.js
+++ b/apps/remix-ide/src/app/editor/editor.js
@@ -16,6 +16,7 @@ const langTools = ace.acequire('ace/ext/language_tools')
 require('ace-mode-solidity/build/remix-ide/mode-solidity')
 require('ace-mode-move/build/remix-ide/mode-move')
 require('ace-mode-zokrates')
+require('ace-mode-lexon')
 require('brace/mode/javascript')
 require('brace/mode/python')
 require('brace/mode/json')
@@ -87,6 +88,7 @@ class Editor extends Plugin {
       py: 'ace/mode/python',
       vy: 'ace/mode/python',
       zok: 'ace/mode/zokrates',
+      lex: 'ace/mode/lexon',
       txt: 'ace/mode/text',
       json: 'ace/mode/json',
       abi: 'ace/mode/json',
diff --git a/package-lock.json b/package-lock.json
index 8bcfd029c1..24003b7fab 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7495,6 +7495,12 @@
         "negotiator": "0.6.2"
       }
     },
+    "ace-mode-lexon": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/ace-mode-lexon/-/ace-mode-lexon-1.0.5.tgz",
+      "integrity": "sha512-kn42vP48Cl+qrhAcjld1l4OjH4kdqQRL37XVI3kS+eluNZcB/0wGcIQ/44+F7Hv2tMPmsqMOnlaCCGIlBkb0Zw==",
+      "dev": true
+    },
     "ace-mode-move": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/ace-mode-move/-/ace-mode-move-0.0.1.tgz",
diff --git a/package.json b/package.json
index 4f80b2682a..0835a8b451 100644
--- a/package.json
+++ b/package.json
@@ -175,6 +175,7 @@
     "ace-mode-move": "0.0.1",
     "ace-mode-solidity": "^0.1.0",
     "ace-mode-zokrates": "^1.0.0",
+    "ace-mode-lexon": "^1.*.*",
     "async": "^2.1.2",
     "babel-eslint": "^10.0.0",
     "babel-plugin-add-module-exports": "^1.0.2",