diff --git a/include/stdnoreturn.h b/include/stdnoreturn.h
index f022730e8a49..218a3a0ad111 100644
--- a/include/stdnoreturn.h
+++ b/include/stdnoreturn.h
@@ -26,11 +26,13 @@
  * $FreeBSD$
  */
 
-#ifndef noreturn
-
-#if !defined(__cplusplus) || __cplusplus < 201103L
-#include <sys/cdefs.h>
-#define	noreturn		_Noreturn
+#ifdef __cplusplus
+#error "<stdnoreturn.h> cannot be used in combination with C++11."
 #endif
 
+#ifndef noreturn
+
+#include <sys/cdefs.h>
+#define	noreturn		_Noreturn
+
 #endif /* !noreturn */