diff --git a/libraries/dsp/fringe_stop/hdllib.cfg b/libraries/dsp/fringe_stop/hdllib.cfg
index bb2e81a564f686b7deb02f1c021b891ed65291a5..07dc2c2789e8831a06da4c2779274decdbf5912e 100644
--- a/libraries/dsp/fringe_stop/hdllib.cfg
+++ b/libraries/dsp/fringe_stop/hdllib.cfg
@@ -10,6 +10,7 @@ synth_files =
     
 test_bench_files = 
     tb/vhdl/tb_fringe_stop_unit.vhd 
+    tb/vhdl/tb_tb_fringe_stop_unit.vhd 
 
 regression_test_vhdl = 
     # no self checking tb available yet