diff --git a/libc/isystem/stdnoreturn.h b/libc/isystem/stdnoreturn.h
index 45dd3dcc2..216c41bf9 100644
--- a/libc/isystem/stdnoreturn.h
+++ b/libc/isystem/stdnoreturn.h
@@ -1,15 +1,10 @@
 #ifndef LIBC_ISYSTEM_STDNORETURN_H_
 #define LIBC_ISYSTEM_STDNORETURN_H_
 
-#if !(__ASSEMBLER__ + __LINKER__ + 0)
-#if __STDC_VERSION__ + 0 >= 201112
 COSMOPOLITAN_C_START_
 
-#define noreturn _Noreturn
+#define noreturn wontreturn
 
 COSMOPOLITAN_C_END_
 
-#endif /* C11 */
-#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
-
 #endif