diff --git a/clang/include/clang/Basic/CharInfo.h b/clang/include/clang/Basic/CharInfo.h
index 4d90528f7992e38..d71857e8e5dcc39 100644
--- a/clang/include/clang/Basic/CharInfo.h
+++ b/clang/include/clang/Basic/CharInfo.h
@@ -151,8 +151,7 @@ LLVM_READONLY inline bool isHexDigit(unsigned char c) {
 /// Note that '_' is both a punctuation character and an identifier character!
 LLVM_READONLY inline bool isPunctuation(unsigned char c) {
   using namespace charinfo;
-  return (InfoTable[c] &
-          (CHAR_UNDER | CHAR_PERIOD | CHAR_PUNCT | CHAR_PUNCT)) != 0;
+  return (InfoTable[c] & (CHAR_UNDER | CHAR_PERIOD | CHAR_PUNCT)) != 0;
 }
 
 /// Return true if this character is an ASCII printable character; that is, a