diff --git a/libraries/base/dp/tb/vhdl/dp_stream_stimuli.vhd b/libraries/base/dp/tb/vhdl/dp_stream_stimuli.vhd
index cbaeb5aa5023d595bb8d86551d22fe852d5b8505..f7b26aaf293add86bfb9bf7cef3ade45610e3897 100644
--- a/libraries/base/dp/tb/vhdl/dp_stream_stimuli.vhd
+++ b/libraries/base/dp/tb/vhdl/dp_stream_stimuli.vhd
@@ -63,7 +63,7 @@ ENTITY dp_stream_stimuli IS
     clk               : IN  STD_LOGIC;
   
     -- Generate stimuli
-    src_in            : IN  t_dp_siso;
+    src_in            : IN  t_dp_siso := c_dp_siso_rdy;
     src_out           : OUT t_dp_sosi;
 
     -- End of stimuli