diff --git a/vlib/v/ast/ast.v b/vlib/v/ast/ast.v
index a6f54779e8..21f4eb9e90 100644
--- a/vlib/v/ast/ast.v
+++ b/vlib/v/ast/ast.v
@@ -827,7 +827,6 @@ pub:
 pub mut:
 	expr_types      []table.Type // [Dog, Cat] // also used for interface_types
 	is_interface    bool // array of interfaces e.g. `[]Animal` `[Dog{}, Cat{}]`
-	interface_types []table.Type // [Dog, Cat]
 	interface_type  table.Type // Animal
 	elem_type       table.Type // element type
 	typ             table.Type // array type