diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h
index a7a8a9ac5991..828ebe7ba7dc 100644
--- a/arch/powerpc/include/asm/time.h
+++ b/arch/powerpc/include/asm/time.h
@@ -205,6 +205,7 @@ struct cpu_usage {
 DECLARE_PER_CPU(struct cpu_usage, cpu_usage_array);
 
 extern void secondary_cpu_time_init(void);
+extern void __init time_init(void);
 
 DECLARE_PER_CPU(u64, decrementers_next_tb);