diff --git a/src/corelib/serialization/qxmlstream.cpp b/src/corelib/serialization/qxmlstream.cpp
index 21ca09057b..be9fcb3356 100644
--- a/src/corelib/serialization/qxmlstream.cpp
+++ b/src/corelib/serialization/qxmlstream.cpp
@@ -958,7 +958,7 @@ inline uint QXmlStreamReaderPrivate::peekChar()
 bool QXmlStreamReaderPrivate::scanUntil(const char *str, short tokenToInject)
 {
     int pos = textBuffer.size();
-    int oldLineNumber = lineNumber;
+    const auto oldLineNumber = lineNumber;
 
     uint c;
     while ((c = getChar()) != StreamEOF) {