diff --git a/vlib/v/gen/fn.v b/vlib/v/gen/fn.v
index a62168e035..f63d8d8bf0 100644
--- a/vlib/v/gen/fn.v
+++ b/vlib/v/gen/fn.v
@@ -654,6 +654,7 @@ fn (mut g Gen) autofree_call_pregen(node ast.CallExpr) {
 				name: t
 				typ: table.string_type
 				is_autofree_tmp: true
+				pos: node.pos
 			})
 			s = 'string $t = '
 		}