diff --git a/qrenderdoc/3rdparty/toolwindowmanager/ToolWindowManager.cpp b/qrenderdoc/3rdparty/toolwindowmanager/ToolWindowManager.cpp
index 15fa437f4..0725ac3c2 100644
--- a/qrenderdoc/3rdparty/toolwindowmanager/ToolWindowManager.cpp
+++ b/qrenderdoc/3rdparty/toolwindowmanager/ToolWindowManager.cpp
@@ -490,7 +490,7 @@ void ToolWindowManager::restoreState(const QVariantMap &dataMap) {
     wrapper->restoreState(windowData.toMap());
     wrapper->updateTitle();
     wrapper->show();
-    if(wrapper->windowState() && Qt::WindowMaximized)
+    if(wrapper->windowState() & Qt::WindowMaximized)
     {
       wrapper->setWindowState(0);
       wrapper->setWindowState(Qt::WindowMaximized);