diff --git a/plat/xilinx/common/timer/timers.c b/plat/xilinx/common/timer/timers.c
index f53cd84..a6e1afa 100644
--- a/plat/xilinx/common/timer/timers.c
+++ b/plat/xilinx/common/timer/timers.c
@@ -27,6 +27,7 @@
 
 #define TTC_CNT_CNTRL_DISABLE_MASK	BIT(0)
 
+#define TTC_CLK_SEL_OFFSET		U(0x360)
 #define TTC_CLK_SEL_MASK		GENMASK(1, 0)
 
 #define TTC_CLK_SEL_PS_REF		BIT(0)