Qt: fix a forgotten deletion

diff --git a/modules/gui/qt4/dialogs_provider.cpp b/modules/gui/qt4/dialogs_provider.cpp
index b58188fdfa97ea1bfdc3ed99b3f0fbf11d3583cf..2d3e927dbe8167d148498f1ed7744af8e06020c3 100644 (file)
--- a/modules/gui/qt4/dialogs_provider.cpp
+++ b/modules/gui/qt4/dialogs_provider.cpp
@@ -94,6 +94,7 @@ DialogsProvider::~DialogsProvider()
 #ifdef UPDATE_CHECK
     UpdateDialog::killInstance();
 #endif
+    PluginDialog::killInstance();
 
     delete menusMapper;
     delete menusUpdateMapper;