diff --git a/vai_reg/vai_reg.vhd b/vai_reg/vai_reg.vhd
index c497db8..16a499b 100644
--- a/vai_reg/vai_reg.vhd
+++ b/vai_reg/vai_reg.vhd
@@ -50,8 +50,7 @@ architecture rtl of vai_reg is
 begin
 
 
-  s_dout_accepted <= true when DoutValid_o = '1' and DoutAccept_i = '1' else
-                     false;
+  s_dout_accepted <= (DoutValid_o and DoutAccept_i) = '1';
 
 
   process (Reset_n_i, Clk_i) is