diff --git a/include/stdlib.h b/include/stdlib.h
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -354,7 +354,9 @@
 #if defined(__generic) && !defined(__cplusplus)
 #define	qsort_r(base, nel, width, arg4, arg5)				\
     __generic(arg5, int (*)(void *, const void *, const void *),	\
-        __qsort_r_compat, qsort_r)(base, nel, width, arg4, arg5)
+	__qsort_r_compat,						\
+	__generic(arg5,	int (void *, const void *, const void *),	\
+	__qsort_r_compat, qsort_r))(base, nel, width, arg4, arg5)
 #elif defined(__cplusplus)
 __END_DECLS
 extern "C++" {