diff --git a/direct/src/dcparser/dcClass.cxx b/direct/src/dcparser/dcClass.cxx
index 6372ed18d7..9c8dc42a9e 100644
--- a/direct/src/dcparser/dcClass.cxx
+++ b/direct/src/dcparser/dcClass.cxx
@@ -42,7 +42,7 @@ ConfigVariableBool dc_multiple_inheritance
           "which may be required to support old code that assumed this."));
 
 ConfigVariableBool dc_virtual_inheritance
-("dc-virtual-inheritance", false,
+("dc-virtual-inheritance", true,
  PRC_DESC("Set this true to support proper virtual inheritance in the "
 	  "dc file, so that diamond-of-death type constructs can be used.  "
 	  "This also enables shadowing (overloading) of inherited method "