diff --git a/sources/data_bus.qsys b/sources/data_bus.qsys
index 6837290fad5c0e0acc20190eea194becf5f1b879..c747dcb983a7be4553e55d8c84dd3eb9bddb0a70 100644
--- a/sources/data_bus.qsys
+++ b/sources/data_bus.qsys
@@ -34,6 +34,14 @@
          type = "int";
       }
    }
+   element pio_0.s1
+   {
+      datum baseAddress
+      {
+         value = "0";
+         type = "String";
+      }
+   }
    element reset_in
    {
       datum _sortIndex