diff --git a/mode/conf.py b/mode/conf.py
index 88686b4..2ebada0 100644
--- a/mode/conf.py
+++ b/mode/conf.py
@@ -6,8 +6,8 @@ class ConfGrammar(Grammar):
     rules = [
         PatternRule('conf.comment', '#.*$'),
         PatternRule('conf.comment', '//.*$'),
-        #RegionRule('conf.string', "'", StringGrammar1, "'"),
-        #RegionRule('conf.string', '"', StringGrammar2, '"'),
+        RegionRule('conf.string', "'", StringGrammar1, "'"),
+        RegionRule('conf.string', '"', StringGrammar2, '"'),
         PatternRule('conf.data', r'(?:[^\'"#/]|/(?!/))+'),
     ]