diff --git a/openocd/zc706.cfg b/openocd/zc706.cfg
index 62e7fa6d..2ac22afe 100644
--- a/openocd/zc706.cfg
+++ b/openocd/zc706.cfg
@@ -1,5 +1,5 @@
 source ./digilent_jtag_smt2_nc.cfg
-adapter_khz 10000
+adapter_khz 1000
 
 set PL_TAPID 0x23731093
 set SMP 1