diff --git a/help.js b/help.js
index d9bcacd..d296818 100644
--- a/help.js
+++ b/help.js
@@ -16,4 +16,10 @@ module.exports.categories = {
   proxy:              13,
   misc:               14,
   insertMode:         15,
+  vim:                {
+    normal:  16,
+    insert:  17,
+    visual:  18,
+    command: 19,
+  },
 }
diff --git a/util.js b/util.js
index 84ea83b..f5f01f8 100644
--- a/util.js
+++ b/util.js
@@ -102,7 +102,19 @@ util.processMaps = (maps, aliases, siteleader) => {
     const fullDescription = `#${category} ${description}`
 
     if (mapObj.map !== undefined) {
-      map(alias, mapObj.map)
+      if (Object.values(categories.vim).includes(mapObj.category)) {
+        aceVimMap(alias, mapObj.map, {
+          [categories.vim.normal]:  "normal",
+          [categories.vim.insert]:  "insert",
+          [categories.vim.command]: "command",
+        }[mapObj.category])
+      }
+      const method = {
+        [categories.omnibar]:    cmap,
+        [categories.insertMode]: imap,
+        [categories.visualMode]: vmap,
+      }[mapObj.category] || map
+      method(alias, mapObj.map)
     } else {
       mapkey(key, fullDescription, callback, opts)
     }