diff --git a/src/network/network_gui.cpp b/src/network/network_gui.cpp
index 1760030bbf..e4af9d5b9a 100644
--- a/src/network/network_gui.cpp
+++ b/src/network/network_gui.cpp
@@ -1354,7 +1354,6 @@ struct NetworkLobbyWindow : public Window {
 		this->CreateNestedTree();
 		this->vscroll = this->GetScrollbar(WID_NL_SCROLLBAR);
 		this->FinishInitNested(WN_NETWORK_WINDOW_LOBBY);
-		this->OnResize();
 	}
 
 	CompanyID NetworkLobbyFindCompanyIndex(byte pos) const
diff --git a/src/object_gui.cpp b/src/object_gui.cpp
index b27388313d..e4287c7aca 100644
--- a/src/object_gui.cpp
+++ b/src/object_gui.cpp
@@ -75,14 +75,12 @@ public:
 	BuildObjectWindow(WindowDesc *desc, Window *w) : PickerWindowBase(desc, w), info_height(1)
 	{
 		this->CreateNestedTree();
-
 		this->vscroll = this->GetScrollbar(WID_BO_SCROLLBAR);
-		this->vscroll->SetCapacity(5);
+		this->FinishInitNested(0);
+
 		this->vscroll->SetPosition(0);
 		this->vscroll->SetCount(ObjectClass::GetUIClassCount());
 
-		this->FinishInitNested(0);
-
 		if (this->CanRestoreSelectedObject()) {
 			this->SelectOtherObject(_selected_object_index);
 		} else {