diff --git a/qrenderdoc/3rdparty/toolwindowmanager/ToolWindowManager.cpp b/qrenderdoc/3rdparty/toolwindowmanager/ToolWindowManager.cpp
index ead52ff25..2c83b55b6 100644
--- a/qrenderdoc/3rdparty/toolwindowmanager/ToolWindowManager.cpp
+++ b/qrenderdoc/3rdparty/toolwindowmanager/ToolWindowManager.cpp
@@ -30,6 +30,7 @@
 #include <QEvent>
 #include <QApplication>
 #include <QDrag>
+#include <QMetaMethod>
 #include <QMimeData>
 #include <QMouseEvent>
 #include <QPainter>
@@ -792,6 +793,16 @@ void ToolWindowManager::tabCloseRequested(int index) {
     return;
   }
 
+  int methodIndex = toolWindow->metaObject()->indexOfMethod(QMetaObject::normalizedSignature("checkAllowClose()"));
+
+  if(methodIndex >= 0) {
+    bool ret = true;
+    toolWindow->metaObject()->method(methodIndex).invoke(toolWindow, Qt::DirectConnection, Q_RETURN_ARG(bool, ret));
+
+    if(!ret)
+      return;
+  }
+
   if(toolWindowProperties(toolWindow) & ToolWindowManager::HideOnClose)
     hideToolWindow(toolWindow);
   else