diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 4c80528deadd..b8cb0dde3af0 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -484,7 +484,7 @@ void free_initrd_mem(unsigned long start, unsigned long end)
 }
 #endif
 
-void free_initmem(void)
+void __init_refok free_initmem(void)
 {
 	prom_free_prom_memory();
 	free_init_pages("unused kernel memory",