diff --git a/linux-x64/clang/include/llvm-c/Comdat.h b/linux-x64/clang/include/llvm-c/Comdat.h
index 81fee3f..45b4007 100644
--- a/linux-x64/clang/include/llvm-c/Comdat.h
+++ b/linux-x64/clang/include/llvm-c/Comdat.h
@@ -14,11 +14,10 @@
 #ifndef LLVM_C_COMDAT_H
 #define LLVM_C_COMDAT_H
 
+#include "llvm-c/ExternC.h"
 #include "llvm-c/Types.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+LLVM_C_EXTERN_C_BEGIN
 
 typedef enum {
   LLVMAnyComdatSelectionKind,        ///< The linker may choose any COMDAT.
@@ -68,8 +67,6 @@
  */
 void LLVMSetComdatSelectionKind(LLVMComdatRef C, LLVMComdatSelectionKind Kind);
 
-#ifdef __cplusplus
-}
-#endif
+LLVM_C_EXTERN_C_END
 
 #endif