diff --git a/runtime/syntax/c.vim b/runtime/syntax/c.vim
index d2f2b85b42..64bcd3e368 100644
--- a/runtime/syntax/c.vim
+++ b/runtime/syntax/c.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
 " Language:		C
 " Maintainer:		The Vim Project <https://github.com/vim/vim>
-" Last Change:		2025 Nov 18
+" Last Change:		2026 Jan 13
 " Former Maintainer:	Bram Moolenaar <Bram@vim.org>
 
 " Quit when a (custom) syntax file was already loaded
@@ -326,7 +326,10 @@ if !exists("c_no_c11")
   syn keyword	cOperator	_Alignof alignof
   syn keyword	cStorageClass	_Atomic
   syn keyword	cOperator	_Generic
-  syn keyword	cStorageClass	_Noreturn noreturn
+  syn keyword	cStorageClass	_Noreturn
+  if !s:in_cpp_family
+    syn keyword	cStorageClass	noreturn
+  endif
   syn keyword	cOperator	_Static_assert static_assert
   syn keyword	cStorageClass	_Thread_local thread_local
   syn keyword   cType		char16_t char32_t