diff --git a/src/Val.cc b/src/Val.cc
index 4247d437e1..c1fdaae833 100644
--- a/src/Val.cc
+++ b/src/Val.cc
@@ -2936,7 +2936,8 @@ void RecordVal::ResizeParseTimeRecords(RecordType* revised_rt)
 		if ( required_length > current_length )
 			{
 			for ( auto i = current_length; i < required_length; ++i )
-				rv->AppendField(revised_rt->FieldDefault(i));
+				rv->AppendField(revised_rt->FieldDefault(i),
+				                revised_rt->GetFieldType(i));
 			}
 		}
 	}
@@ -3123,7 +3124,7 @@ ValPtr RecordVal::DoClone(CloneState* state)
 		{
 		auto f_i = GetField(i);
 		auto v = f_i ? f_i->Clone(state) : nullptr;
-		rv->AppendField(std::move(v));
+		rv->AppendField(std::move(v), rt->GetFieldType(i));
 		}
 
 	return rv;
diff --git a/src/Val.h b/src/Val.h
index 70b044f9b6..97131f8d00 100644
--- a/src/Val.h
+++ b/src/Val.h
@@ -1176,13 +1176,15 @@ public:
 	/**
 	 * Appends a value to the record's fields.  The caller is responsible
 	 * for ensuring that fields are appended in the correct order and
-	 * with the correct type.
+	 * with the correct type.  The type needs to be passed in because
+	 * it's unsafe to take it from v when the field's type is "any" while
+	 * v is a concrete type.
 	 * @param v  The value to append.
 	 */
-	void AppendField(ValPtr v)
+	void AppendField(ValPtr v, const TypePtr& t)
 		{
 		if ( v )
-			record_val->emplace_back(ZVal(v, v->GetType()));
+			record_val->emplace_back(ZVal(v, t));
 		else
 			record_val->emplace_back(std::nullopt);
 		}