diff --git a/libraries/base/ss/hdllib.cfg b/libraries/base/ss/hdllib.cfg
index 3695cf68788a8ac4fd9a3bd74b9cd44f6469df0a..13ea78cce2bea38646054e2bf4029e363735cb60 100644
--- a/libraries/base/ss/hdllib.cfg
+++ b/libraries/base/ss/hdllib.cfg
@@ -6,7 +6,7 @@ hdl_lib_uses_sim =
 hdl_lib_technology = 
 
 build_dir_sim = $HDL_BUILD_DIR
-build_dir_synth = 
+build_dir_synth = $HDL_BUILD_DIR
 
 synth_files =
     $UNB/Firmware/modules/Lofar/ss/src/vhdl/ss_store.vhd