diff --git a/libc/include/__llvm-libc-common.h b/libc/include/__llvm-libc-common.h
index c63eb134a5e5d..b5a23c5765f4d 100644
--- a/libc/include/__llvm-libc-common.h
+++ b/libc/include/__llvm-libc-common.h
@@ -39,7 +39,11 @@
 #define _Thread_local thread_local
 
 #undef __NOEXCEPT
+#if __cplusplus >= 201103L
 #define __NOEXCEPT noexcept
+#else
+#define __NOEXCEPT throw()
+#endif
 
 #else // not __cplusplus