diff --git a/lib/linguist/heuristics.rb b/lib/linguist/heuristics.rb
index c357bb89..9083e0ca 100644
--- a/lib/linguist/heuristics.rb
+++ b/lib/linguist/heuristics.rb
@@ -20,13 +20,13 @@ module Linguist
           result = disambiguate_ecl(data, languages)
         end
         if languages.all? { |l| ["Adventure Game Studio", "AsciiDoc"].include?(l) }
-          result = disabiguate_asc(data, languages)
+          result = disambiguate_asc(data, languages)
         end
         return result
       end
     end
 
-    def self.disabiguate_asc(data, languages)
+    def self.disambiguate_asc(data, languages)
       matches = []
       if (/^(\/\/\s*|\s*((import|export)?\s*(function|int|float|char)\s*((room|repeatedly|on|game)_)?([A-Za-z]+[A-Za-z_0-9]+)\s*[;\(]?))/.match(data))
         matches << Language["Adventure Game Studio"]