diff --git a/src/tools/qdoc/qmlcodeparser.cpp b/src/tools/qdoc/qmlcodeparser.cpp
index 02ab4b07fba..c86982eb957 100644
--- a/src/tools/qdoc/qmlcodeparser.cpp
+++ b/src/tools/qdoc/qmlcodeparser.cpp
@@ -86,6 +86,8 @@ QT_BEGIN_NAMESPACE
   Constructs the QML code parser.
  */
 QmlCodeParser::QmlCodeParser()
+    : lexer( 0 ),
+      parser( 0 )
 {
 }