diff --git a/src/UI/SpecialVisualization.ts b/src/UI/SpecialVisualization.ts
index 4acf40322..d0f5b03d9 100644
--- a/src/UI/SpecialVisualization.ts
+++ b/src/UI/SpecialVisualization.ts
@@ -37,7 +37,6 @@ export interface SpecialVisualizationState {
     readonly featureSwitches: FeatureSwitchState
 
     readonly layerState: LayerState
-    readonly featureSummary: SummaryTileSourceRewriter
     readonly featureProperties: FeaturePropertiesStore
 
     readonly indexedFeatures: IndexedFeatureSource & LayoutSource