diff --git a/packages/osd-charts/integration/tests/__image_snapshots__/all-test-ts-baseline-visual-tests-for-all-stories-flame-alpha-cpu-profile-flame-chart-visually-looks-correct-1-snap.png b/packages/osd-charts/integration/tests/__image_snapshots__/all-test-ts-baseline-visual-tests-for-all-stories-flame-alpha-cpu-profile-flame-chart-visually-looks-correct-1-snap.png
index 56c44f5b1b9a..2cd9188fa7da 100644
Binary files a/packages/osd-charts/integration/tests/__image_snapshots__/all-test-ts-baseline-visual-tests-for-all-stories-flame-alpha-cpu-profile-flame-chart-visually-looks-correct-1-snap.png and b/packages/osd-charts/integration/tests/__image_snapshots__/all-test-ts-baseline-visual-tests-for-all-stories-flame-alpha-cpu-profile-flame-chart-visually-looks-correct-1-snap.png differ
diff --git a/packages/osd-charts/src/chart_types/partition_chart/renderer/canvas/canvas_linear_renderers.ts b/packages/osd-charts/src/chart_types/partition_chart/renderer/canvas/canvas_linear_renderers.ts
index fdc68fd6e237..a7e976d718d6 100644
--- a/packages/osd-charts/src/chart_types/partition_chart/renderer/canvas/canvas_linear_renderers.ts
+++ b/packages/osd-charts/src/chart_types/partition_chart/renderer/canvas/canvas_linear_renderers.ts
@@ -38,6 +38,7 @@ export function renderLinearPartitionCanvas2d(
     diskCenter,
     width: panelWidth,
     height: panelHeight,
+    layers,
   }: ShapeViewModel,
   { currentFocusX0, currentFocusX1, prevFocusX0, prevFocusX1 }: ContinuousDomainFocus,
   chartId: ChartId,
@@ -88,7 +89,7 @@ export function renderLinearPartitionCanvas2d(
     ctx.translate(diskCenter.x, diskCenter.y);
     ctx.clearRect(0, 0, width, height);
 
-    quadViewModel.forEach(({ fillColor, x0, x1, y0px: y0, y1px: y1, dataName: label, textColor }) => {
+    quadViewModel.forEach(({ fillColor, x0, x1, y0px: y0, y1px: y1, dataName, textColor, depth }) => {
       if (y1 - y0 <= padding) return;
 
       const fx0 = Math.max((x0 - focusX0) * scale, 0);
@@ -96,6 +97,8 @@ export function renderLinearPartitionCanvas2d(
 
       if (fx1 < 0 || fx0 > width) return;
 
+      const formatter = layers[depth]?.nodeLabel ?? String;
+      const label = formatter(dataName);
       const fWidth = fx1 - fx0;
       const fPadding = Math.min(padding, MAX_PADDING_RATIO * fWidth);
 
diff --git a/packages/osd-charts/stories/icicle/03_cpu_profile_flame.tsx b/packages/osd-charts/stories/icicle/03_cpu_profile_flame.tsx
index b292ee131b60..10553c21f964 100644
--- a/packages/osd-charts/stories/icicle/03_cpu_profile_flame.tsx
+++ b/packages/osd-charts/stories/icicle/03_cpu_profile_flame.tsx
@@ -31,7 +31,7 @@ const color = palette.slice().reverse();
 const getLayerSpec = (maxDepth: number = 30) =>
   [...new Array(maxDepth + 1)].map((_, depth) => ({
     groupByRollup: (d: Datum) => data.dictionary[d.layers[depth]],
-    nodeLabel: (d: PrimitiveValue) => String(d),
+    nodeLabel: (d: PrimitiveValue) => `${String(d)}/`,
     showAccessor: (d: PrimitiveValue) => d !== undefined,
     shape: {
       fillColor: () => discreteColor(color, 0.8)(depth),