diff --git a/libraries/dsp/rTwoSDF/hdllib.cfg b/libraries/dsp/rTwoSDF/hdllib.cfg
index 263bdba73911dc2eca9883ee4954b1c2b8d0e87b..97403210a01116d87e16eb8b0cfd006e6dfe4d0b 100644
--- a/libraries/dsp/rTwoSDF/hdllib.cfg
+++ b/libraries/dsp/rTwoSDF/hdllib.cfg
@@ -19,7 +19,7 @@ synth_files =
     $UNB/Firmware/dsp/rTwoSDF/src/vhdl/rtwo_top.vhd 
  
 test_bench_files =  
-    $UNB/Firmware/dsp/rTwoSDF/tb/vhdl/tb_rTwoSDF.vhd 
+    tb/vhdl/tb_rTwoSDF.vhd 
     $UNB/Firmware/dsp/rTwoSDF/tb/vhdl/tb_tb_rTwoSDF.vhd 
     $UNB/Firmware/dsp/rTwoSDF/tb/vhdl/tb_rTwoOrder.vhd