diff --git a/arch/arm64/kernel/alternative.c b/arch/arm64/kernel/alternative.c
index 91263d09ea65..0f5eaa4c3a39 100644
--- a/arch/arm64/kernel/alternative.c
+++ b/arch/arm64/kernel/alternative.c
@@ -196,7 +196,7 @@ static void __apply_alternatives(const struct alt_region *region,
 	}
 }
 
-void apply_alternatives_vdso(void)
+static void apply_alternatives_vdso(void)
 {
 	struct alt_region region;
 	const struct elf64_hdr *hdr;