diff --git a/typescript/packages/group-tree-plot/src/utils/DataAssembler.ts b/typescript/packages/group-tree-plot/src/utils/DataAssembler.ts
index b40076580..d476db739 100644
--- a/typescript/packages/group-tree-plot/src/utils/DataAssembler.ts
+++ b/typescript/packages/group-tree-plot/src/utils/DataAssembler.ts
@@ -142,10 +142,10 @@ export class DataAssembler {
     getPropertyInfo(propertyKey: string): [label: string, unit: string] {
         const [label, unit] = this._propertyToLabelMap.get(propertyKey) ?? [];
 
-        const sanitzedLabel = _.upperFirst(label ?? "");
-        const sanitzedUnit = unit ?? "?";
+        const sanitizedLabel = _.upperFirst(label ?? "");
+        const sanitizedUnit = unit ?? "?";
 
-        return [sanitzedLabel, sanitzedUnit];
+        return [sanitizedLabel, sanitizedUnit];
     }
 
     /**