diff --git a/arch/riscv/kernel/cpu-hotplug.c b/arch/riscv/kernel/cpu-hotplug.c
index df84e0c13db1..0e948e87bd81 100644
--- a/arch/riscv/kernel/cpu-hotplug.c
+++ b/arch/riscv/kernel/cpu-hotplug.c
@@ -69,7 +69,7 @@ void __cpu_die(unsigned int cpu)
 	if (cpu_ops[cpu]->cpu_is_stopped)
 		ret = cpu_ops[cpu]->cpu_is_stopped(cpu);
 	if (ret)
-		pr_warn("CPU%d may not have stopped: %d\n", cpu, ret);
+		pr_warn("CPU%u may not have stopped: %d\n", cpu, ret);
 }
 
 /*