diff --git a/radiant/ui/modelselector/ModelSelector.cpp b/radiant/ui/modelselector/ModelSelector.cpp
index 52af3323dd..bd5f35fe6c 100644
--- a/radiant/ui/modelselector/ModelSelector.cpp
+++ b/radiant/ui/modelselector/ModelSelector.cpp
@@ -280,7 +280,7 @@ void ModelSelector::setupTreeView(wxWindow* parent)
     auto* toolbar = new wxutil::ResourceTreeViewToolbar(parent, _treeView);
 
 	parent->GetSizer()->Prepend(_treeView, 1, wxEXPAND);
-    parent->GetSizer()->Prepend(toolbar, 0, wxALIGN_LEFT | wxBOTTOM | wxLEFT | wxRIGHT, 6);
+    parent->GetSizer()->Prepend(toolbar, 0, wxEXPAND | wxALIGN_LEFT | wxBOTTOM | wxLEFT | wxRIGHT, 6);
     parent->GetSizer()->Layout();
 }