diff --git a/ada/ast.py b/ada/ast.py
index 72c3998f4..52e42661e 100644
--- a/ada/ast.py
+++ b/ada/ast.py
@@ -1927,12 +1927,6 @@ def gnat_xref():
                     dbd.is_a(T.ParamSpec),
                     dbd.cast(T.ParamSpec).decl_param(ret),
 
-                    dbd.is_a(T.GenericSubpInternal, T.GenericPackageInternal),
-                    dbd.generic_instantiations.at(0).then(
-                        lambda gi: gi.cast_or_raise(T.BasicDecl).defining_name,
-                        default_val=ret
-                    ),
-
                     dbd.is_a(T.ObjectDecl),
                     # Since dbd can refer to an object declaration with
                     # multiple defining names, do not call `public_part_decl`