diff --git a/sys/sun4v/include/stdarg.h b/sys/sun4v/include/stdarg.h
index a7ff2848438..9e6cd94c70d 100644
--- a/sys/sun4v/include/stdarg.h
+++ b/sys/sun4v/include/stdarg.h
@@ -52,7 +52,7 @@ typedef	__va_list	va_list;
 #ifdef __GNUCLIKE_BUILTIN_STDARG
 
 #define	va_start(ap, last) \
-	__builtin_stdarg_start((ap), (last))
+	__builtin_va_start((ap), (last))
 
 #define	va_arg(ap, type) \
 	__builtin_va_arg((ap), type)