diff --git a/arch/riscv/kernel/vector.c b/arch/riscv/kernel/vector.c
index 821818886fab..39f0577f580d 100644
--- a/arch/riscv/kernel/vector.c
+++ b/arch/riscv/kernel/vector.c
@@ -309,7 +309,7 @@ static int __init riscv_v_sysctl_init(void)
 static int __init riscv_v_sysctl_init(void) { return 0; }
 #endif /* ! CONFIG_SYSCTL */
 
-static int riscv_v_init(void)
+static int __init riscv_v_init(void)
 {
 	return riscv_v_sysctl_init();
 }