diff --git a/rtl/accum/tests/test_timing.xdc b/rtl/accum/tests/test_timing.xdc
index 56cb725..29312a3 100644
--- a/rtl/accum/tests/test_timing.xdc
+++ b/rtl/accum/tests/test_timing.xdc
@@ -1,6 +1,6 @@
 # Primary clocks
 create_clock -name eth_clk -period 8.000  [get_ports eth_clk_in]
-create_clock -name acc_clk -period 15.385  [get_ports acc_clk_in]
+create_clock -name acc_clk -period 15.385  [get_ports clk_in]
 
 
 # Asynchronous clock groups