diff --git a/libs/wxutil/EntityClassChooser.cpp b/libs/wxutil/EntityClassChooser.cpp
index 577c2090d4..a2e5aef4ca 100644
--- a/libs/wxutil/EntityClassChooser.cpp
+++ b/libs/wxutil/EntityClassChooser.cpp
@@ -10,6 +10,7 @@
 #include "i18n.h"
 #include "ifavourites.h"
 #include "ideclmanager.h"
+#include "ui/iuserinterface.h"
 #include "ui/imainframe.h"
 #include "gamelib.h"
 
@@ -205,7 +206,7 @@ EntityClassChooser::EntityClassChooser(Purpose purpose) :
     // Listen for defs-reloaded signal (cannot bind directly to
     // ThreadedEntityClassLoader method because it is not sigc::trackable)
     _defsReloaded = GlobalDeclarationManager().signal_DeclsReloaded(decl::Type::EntityDef).connect(
-        sigc::mem_fun(this, &EntityClassChooser::loadEntityClasses)
+        [this]() { GlobalUserInterface().dispatch([this]() { loadEntityClasses(); }); }
     );
 
     // Setup the tree view and invoke threaded loader to get the entity classes
diff --git a/radiant/ui/UserInterfaceModule.cpp b/radiant/ui/UserInterfaceModule.cpp
index 7b2d4b5e68..c88bac21c6 100644
--- a/radiant/ui/UserInterfaceModule.cpp
+++ b/radiant/ui/UserInterfaceModule.cpp
@@ -105,7 +105,10 @@ const StringSet& UserInterfaceModule::getDependencies() const
         MODULE_MRU_MANAGER,
         MODULE_MAINFRAME,
         MODULE_MOUSETOOLMANAGER,
-        MODULE_MAP
+        MODULE_MAP,
+        MODULE_PATCH,
+        MODULE_BRUSHCREATOR,
+        MODULE_TEXTOOL_SELECTIONSYSTEM,
     };
 
 	return _dependencies;
@@ -237,7 +240,7 @@ void UserInterfaceModule::initialiseModule(const IApplicationContext& ctx)
 #endif
 
     _reloadMaterialsConn = GlobalDeclarationManager().signal_DeclsReloaded(decl::Type::Material)
-        .connect([]() { GlobalMainFrame().updateAllWindows(); });
+        .connect([this]() { dispatch([]() { GlobalMainFrame().updateAllWindows(); }); });
 }
 
 void UserInterfaceModule::shutdownModule()
diff --git a/radiant/ui/einspector/EntityInspector.cpp b/radiant/ui/einspector/EntityInspector.cpp
index 0bde5fada5..21577970a6 100644
--- a/radiant/ui/einspector/EntityInspector.cpp
+++ b/radiant/ui/einspector/EntityInspector.cpp
@@ -13,6 +13,7 @@
 #include "ui/igroupdialog.h"
 #include "ui/imainframe.h"
 #include "itextstream.h"
+#include "ui/iuserinterface.h"
 
 #include "module/StaticModule.h"
 #include "selectionlib.h"
@@ -513,7 +514,7 @@ void EntityInspector::onKeyValueSetChanged(const std::string& key, const std::st
 
 void EntityInspector::onDefsReloaded()
 {
-    refresh();
+    GlobalUserInterface().dispatch([this]() { refresh(); });
 }
 
 void EntityInspector::refresh()
diff --git a/radiant/ui/mediabrowser/MediaBrowser.cpp b/radiant/ui/mediabrowser/MediaBrowser.cpp
index 18bc78303c..2cd18b1b0c 100644
--- a/radiant/ui/mediabrowser/MediaBrowser.cpp
+++ b/radiant/ui/mediabrowser/MediaBrowser.cpp
@@ -9,6 +9,7 @@
 #include "ishaders.h"
 #include "ishaderclipboard.h"
 #include "ifavourites.h"
+#include "ui/iuserinterface.h"
 
 #include "wxutil/MultiMonitor.h"
 #include "wxutil/dataview/ResourceTreeViewToolbar.h"
@@ -31,6 +32,7 @@
 
 #include <functional>
 #include "string/predicate.h"
+#include "ui/UserInterfaceModule.h"
 
 namespace ui
 {
@@ -133,12 +135,12 @@ void MediaBrowser::setSelection(const std::string& selection)
 
 void MediaBrowser::onMaterialDefsLoaded()
 {
-    _treeView->Populate();
+    GlobalUserInterface().dispatch([this]() { _treeView->Populate(); });
 }
 
 void MediaBrowser::onMaterialDefsUnloaded()
 {
-    _treeView->Clear();
+    GlobalUserInterface().dispatch([this]() { _treeView->Clear(); });
 }
 
 void MediaBrowser::_onTreeViewSelectionChanged(wxDataViewEvent& ev)
@@ -180,7 +182,8 @@ const StringSet& MediaBrowser::getDependencies() const
         MODULE_SHADERCLIPBOARD,
         MODULE_MAINFRAME,
         MODULE_FAVOURITES_MANAGER,
-        MODULE_MAP
+        MODULE_MAP,
+        MODULE_USERINTERFACE,
     };
 
 	return _dependencies;