diff --git a/vyper/codegen/expr.py b/vyper/codegen/expr.py
index 25927f1ab0..28de2a18be 100644
--- a/vyper/codegen/expr.py
+++ b/vyper/codegen/expr.py
@@ -720,6 +720,9 @@ def parse_List(self):
         if len(self.expr.elements) == 0:
             return IRnode.from_list("~empty", typ=typ)
 
+        for e in self.expr.elements:
+            if "type" not in e._metadata:
+                e._metadata["type"] = typ.subtype
         multi_ir = [Expr(x, self.context).ir_node for x in self.expr.elements]
 
         return IRnode.from_list(["multi"] + multi_ir, typ=typ)