diff --git a/lib/linguist/tokenizer.rb b/lib/linguist/tokenizer.rb
index 4b2ea607..05882649 100644
--- a/lib/linguist/tokenizer.rb
+++ b/lib/linguist/tokenizer.rb
@@ -33,7 +33,8 @@ module Linguist
       ['<!--', '-->'], # XML
       ['{-', '-}'],    # Haskell
       ['(*', '*)'],    # Coq
-      ['"""', '"""']   # Python
+      ['"""', '"""'],  # Python
+      ["'''", "'''"]   # Python
     ]
 
     START_SINGLE_LINE_COMMENT =  Regexp.compile(SINGLE_LINE_COMMENTS.map { |c|