diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c
index 7e0d8dab207519f7625b722327ce06e531f077c5..b8fa0a8b2e4733170d0b72cff576d7ddb8c750cd 100644
--- a/arch/i386/kernel/tsc.c
+++ b/arch/i386/kernel/tsc.c
@@ -192,7 +192,7 @@ int recalibrate_cpu_khz(void)
 
 EXPORT_SYMBOL(recalibrate_cpu_khz);
 
-void tsc_init(void)
+void __init tsc_init(void)
 {
 	if (!cpu_has_tsc || tsc_disable)
 		return;