diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index bf5f5acab0a8..8589a34c28de 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -447,7 +447,7 @@ static int __init early_parse_memmap(char *p)
 early_param("memmap", early_parse_memmap);
 
 #ifdef CONFIG_PROC_VMCORE
-unsigned long setup_elfcorehdr, setup_elfcorehdr_size;
+static unsigned long setup_elfcorehdr, setup_elfcorehdr_size;
 static int __init early_parse_elfcorehdr(char *p)
 {
 	struct memblock_region *mem;