diff --git a/modules/wishbone/wb_spi/xwb_spi.vhd b/modules/wishbone/wb_spi/xwb_spi.vhd
index 824f0bbfb271b35b50751172488219c711d372d6..a2a74ebb60e44e74934af86b3042d7ce0a37f67f 100644
--- a/modules/wishbone/wb_spi/xwb_spi.vhd
+++ b/modules/wishbone/wb_spi/xwb_spi.vhd
@@ -5,7 +5,7 @@ use work.wishbone_pkg.all;
 
 entity xwb_spi is
   generic(
-    g_interface_mode : t_wishbone_interface_mode
+    g_interface_mode : t_wishbone_interface_mode := CLASSIC
     );
 
   port(