diff --git a/indra/llxuixml/llxuiparser.cpp b/indra/llxuixml/llxuiparser.cpp
index 9c3e855c81a0cb7e0b377033882414a8456a828b..d4556113eaea1723a9e75d074ad10b3f68020e2e 100644
--- a/indra/llxuixml/llxuiparser.cpp
+++ b/indra/llxuixml/llxuiparser.cpp
@@ -722,7 +722,8 @@ bool LLXUIParser::readAttributes(LLXMLNodePtr nodep, LLInitParam::BaseBlock& blo
 void LLXUIParser::writeXUI(LLXMLNodePtr node, const LLInitParam::BaseBlock &block, const LLInitParam::BaseBlock* diff_block)
 {
 	mWriteRootNode = node;
-	block.serializeBlock(*this, Parser::name_stack_t(), diff_block);
+	name_stack_t name_stack = Parser::name_stack_t();
+	block.serializeBlock(*this, name_stack, diff_block);
 	mOutNodes.clear();
 }