diff --git a/src/component/utils/keyboard-remapping.ts b/src/component/utils/keyboard-remapping.ts
index d9d9cdbf..40760bdb 100644
--- a/src/component/utils/keyboard-remapping.ts
+++ b/src/component/utils/keyboard-remapping.ts
@@ -1,8 +1,16 @@
 const KeyTable = {
-  XK_Meta_L: 0xffe7, // Left meta
-  XK_Meta_R: 0xffe8, // Right meta
   XK_Control_L: 0xffe3, // Left control
   XK_Control_R: 0xffe4, // Right control
+
+  XK_Meta_L: 0xffe7, // Left meta
+  XK_Meta_R: 0xffe8, // Right meta
+  XK_Alt_L: 0xffe9, // Left alt
+  XK_Alt_R: 0xffea, // Right alt
+  XK_Super_L: 0xffeb, // Left super
+  XK_Super_R: 0xffec, // Right super
+
+  XK_ISO_Level3_Shift: 0xfe03, // AltGr
+  XK_Mode_switch: 0xff7e, // Character set switch
 }
 
 export const keySymsRemap = function (key: number) {
@@ -16,6 +24,14 @@ export const keySymsRemap = function (key: number) {
         return KeyTable.XK_Control_L
       case KeyTable.XK_Meta_R:
         return KeyTable.XK_Control_R
+      case KeyTable.XK_Super_L:
+        return KeyTable.XK_Alt_L
+      case KeyTable.XK_Super_R:
+        return KeyTable.XK_Super_L
+      case KeyTable.XK_Alt_L:
+        return KeyTable.XK_Mode_switch
+      case KeyTable.XK_Alt_R:
+        return KeyTable.XK_ISO_Level3_Shift
     }
   }