diff -r dee5afe5301f -r 3f74d0d4af4c src/tools/uic/cpp/cppwriteinitialization.cpp
--- a/src/tools/uic/cpp/cppwriteinitialization.cpp	Mon Mar 15 12:43:09 2010 +0200
+++ b/src/tools/uic/cpp/cppwriteinitialization.cpp	Thu Apr 08 14:19:33 2010 +0300
@@ -721,8 +721,9 @@
             m_output << m_indent << parentWidget << "->addDockWidget(" << area << varName << ");\n";
         } else if (m_uic->customWidgetsInfo()->extends(className, QLatin1String("QStatusBar"))) {
             m_output << m_indent << parentWidget << "->setStatusBar(" << varName << ");\n";
-        } else {
-            m_output << m_indent << parentWidget << "->setCentralWidget(" << varName << ");\n";
+        } else if (!m_uic->customWidgetsInfo()->extends(className, QLatin1String("Q3DockWindow"))
+                   && !m_uic->customWidgetsInfo()->extends(className, QLatin1String("Q3ToolBar"))) {
+                m_output << m_indent << parentWidget << "->setCentralWidget(" << varName << ");\n";
         }
     }