diff --git a/src/smallmap_gui.cpp b/src/smallmap_gui.cpp
index 6c0bc4cf6d..e3daba039d 100644
--- a/src/smallmap_gui.cpp
+++ b/src/smallmap_gui.cpp
@@ -1457,7 +1457,7 @@ public:
 	{
 		_smallmap_industry_highlight = INVALID_INDUSTRYTYPE;
 		this->overlay = std::make_unique<LinkGraphOverlay>(this, WID_SM_MAP, 0, this->GetOverlayCompanyMask(), 1);
-		this->InitNested(window_number);
+		this->CreateNestedTree();
 		this->LowerWidget(WID_SM_CONTOUR + this->map_type);
 
 		this->RebuildColourIndexIfNecessary();
@@ -1468,6 +1468,7 @@ public:
 		this->SetWidgetLoweredState(WID_SM_SHOW_IND_NAMES, this->show_ind_names);
 
 		this->SetupWidgetData();
+		this->FinishInitNested(window_number);
 
 		this->SetZoomLevel(ZLC_INITIALIZE, nullptr);
 		this->SmallMapCenterOnCurrentPos();