diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 014c5304..7b70f8cb 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -121,6 +121,15 @@ AutoHotkey:
   aliases:
   - ahk
   primary_extension: .ahk
+  
+AutoIt:
+  type: programming
+  color: "#36699B"
+  aliases:
+  - au3
+  - AutoIt3
+  - AutoItScript
+  primary_extension: .au3
 
 Awk:
   type: programming