diff --git a/lib/AST/CommentLexer.cpp b/lib/AST/CommentLexer.cpp
index f1c23c6..4647713 100644
--- a/lib/AST/CommentLexer.cpp
+++ b/lib/AST/CommentLexer.cpp
@@ -66,8 +66,6 @@
       .Case("gt", ">")
       .Case("quot", "\"")
       .Case("apos", "\'")
-      .Case("minus", "-")
-      .Case("sim", "~")
       .Default("");
 }