diff --git a/libraries/technology/ddr/hdllib.cfg b/libraries/technology/ddr/hdllib.cfg
index 7d7e2f357363d784bb01f3d0e0d18325ae980d06..bd487ba61fe0f9c7c27776625144577521a4827b 100644
--- a/libraries/technology/ddr/hdllib.cfg
+++ b/libraries/technology/ddr/hdllib.cfg
@@ -1,7 +1,7 @@
 hdl_lib_name = tech_ddr
 hdl_library_clause_name = tech_ddr_lib
 hdl_lib_uses_synth = ip_stratixiv_ddr3_uphy_4g_800_master
-#               ip_stratixiv_ddr3_uphy_4g_800_slave
+               ip_stratixiv_ddr3_uphy_4g_800_slave
                ip_stratixiv_ddr3_mem_model
                ip_arria10_ddr4_4g_1600
                ip_arria10_ddr4_8g_2400