diff --git a/clang/include/clang-c/BuildSystem.h b/clang/include/clang-c/BuildSystem.h
index 400ee6e0ddc6..42a3e44d7c77 100644
--- a/clang/include/clang-c/BuildSystem.h
+++ b/clang/include/clang-c/BuildSystem.h
@@ -40,5 +40,5 @@ CINDEX_LINKAGE unsigned long long clang_getBuildSessionTimestamp(void);
 }
 #endif
 
-#endif // CLANG_BUILD_SYSTEM_H
+#endif /* CLANG_BUILD_SYSTEM_H */
 
diff --git a/clang/tools/c-index-test/c-index-test.c b/clang/tools/c-index-test/c-index-test.c
index 8895371d55b3..3a47ae4badd8 100644
--- a/clang/tools/c-index-test/c-index-test.c
+++ b/clang/tools/c-index-test/c-index-test.c
@@ -79,7 +79,7 @@ static unsigned getDefaultParsingOptions() {
   return options;
 }
 
-/// \brief Returns 0 in case of success, non-zero in case of a failure.
+/** \brief Returns 0 in case of success, non-zero in case of a failure. */
 static int checkForErrors(CXTranslationUnit TU);
 
 static void describeLibclangFailure(enum CXErrorCode Err) {