diff --git a/arch/arm/cpu/armv7/zynq/slcr.c b/arch/arm/cpu/armv7/zynq/slcr.c
index d7c1882..c326a4c 100644
--- a/arch/arm/cpu/armv7/zynq/slcr.c
+++ b/arch/arm/cpu/armv7/zynq/slcr.c
@@ -8,6 +8,7 @@
 #include <asm/io.h>
 #include <malloc.h>
 #include <asm/arch/hardware.h>
+#include <asm/arch/sys_proto.h>
 #include <asm/arch/clk.h>
 
 #define SLCR_LOCK_MAGIC		0x767B