diff --git a/arch/arm/plat-mxc/include/mach/mxc.h b/arch/arm/plat-mxc/include/mach/mxc.h
index a4d36d6..1ff7fe7 100644
--- a/arch/arm/plat-mxc/include/mach/mxc.h
+++ b/arch/arm/plat-mxc/include/mach/mxc.h
@@ -166,6 +166,7 @@ extern unsigned int __mxc_cpu_type;
 
 struct cpu_op {
 	u32 cpu_rate;
+	int cpu_voltage;
 };
 
 int tzic_enable_wake(int is_idle);