diff --git a/scripts/tools/letter_count/ChartBar.ts b/scripts/tools/letter_count/ChartBar.ts
index 010922a8..22345298 100644
--- a/scripts/tools/letter_count/ChartBar.ts
+++ b/scripts/tools/letter_count/ChartBar.ts
@@ -65,7 +65,7 @@ export const ChartBar: ChartBase = {
     },
     tooltip: {
       formatter () {
-        const c = this.point.name ?? this.x
+        const c = this.name ?? this.x
         const count = this.y
 
         return c + ' found ' + (count === 1 ? 'once' : count + ' times')
diff --git a/scripts/tools/letter_count/ChartPie.ts b/scripts/tools/letter_count/ChartPie.ts
index 852f6d22..55dc129e 100644
--- a/scripts/tools/letter_count/ChartPie.ts
+++ b/scripts/tools/letter_count/ChartPie.ts
@@ -39,7 +39,7 @@ export const ChartPie: ChartBase = {
     },
     tooltip: {
       formatter () {
-        return (this.point as any).label
+        return (this as any).label
       },
       borderWidth: 3,
       borderRadius: 6,