diff --git a/msvc/ecl-threads.def b/msvc/ecl-threads.def
index 19702367c..3bd8249b0 100755
--- a/msvc/ecl-threads.def
+++ b/msvc/ecl-threads.def
@@ -1397,8 +1397,6 @@ EXPORTS
 	clos_class_slots
 	clos_class_precedence_list
 	clos_class_direct_slots
-	clos_slot_index_table
-	clos_class_shared_slots
 	clos_generic_function_method_combination
 	clos_generic_function_lambda_list
 	clos_generic_function_argument_precedence_order
diff --git a/msvc/ecl.def b/msvc/ecl.def
index 35c5f7c73..a263a5120 100644
--- a/msvc/ecl.def
+++ b/msvc/ecl.def
@@ -1374,8 +1374,6 @@ EXPORTS
 	clos_class_slots
 	clos_class_precedence_list
 	clos_class_direct_slots
-	clos_slot_index_table
-	clos_class_shared_slots
 	clos_generic_function_method_combination
 	clos_generic_function_lambda_list
 	clos_generic_function_argument_precedence_order