diff --git a/packages/grafana-flamegraph/src/FlameGraph/dataTransform.test.ts b/packages/grafana-flamegraph/src/FlameGraph/dataTransform.test.ts
index 8128544abb8..b3e62ba1efa 100644
--- a/packages/grafana-flamegraph/src/FlameGraph/dataTransform.test.ts
+++ b/packages/grafana-flamegraph/src/FlameGraph/dataTransform.test.ts
@@ -75,6 +75,30 @@ describe('nestedSetToLevels', () => {
     expect(levels[0]).toEqual([n1]);
     expect(levels[1]).toEqual([n2, n3, n4]);
   });
+
+  it('handles strings that collide with inherited prototype method names', () => {
+    const frame = createDataFrame({
+      fields: [
+        { name: 'level', values: [0, 1, 1, 1] },
+        { name: 'value', values: [10, 5, 3, 1] },
+        { name: 'label', values: ['toString', 'valueOf', 'hasOwnProperty', 'isPrototypeOf'], type: FieldType.string },
+        { name: 'self', values: [10, 5, 3, 1] },
+      ],
+    });
+    const [levels] = nestedSetToLevels(new FlameGraphDataContainer(frame, { collapsing: true }));
+
+    const n4: LevelItem = { itemIndexes: [3], start: 8, children: [], value: 1, level: 1 };
+    const n3: LevelItem = { itemIndexes: [2], start: 5, children: [], value: 3, level: 1 };
+    const n2: LevelItem = { itemIndexes: [1], start: 0, children: [], value: 5, level: 1 };
+    const n1: LevelItem = { itemIndexes: [0], start: 0, children: [n2, n3, n4], value: 10, level: 0 };
+
+    n2.parents = [n1];
+    n3.parents = [n1];
+    n4.parents = [n1];
+
+    expect(levels[0]).toEqual([n1]);
+    expect(levels[1]).toEqual([n2, n3, n4]);
+  });
 });
 
 describe('FlameGraphDataContainer', () => {
diff --git a/packages/grafana-flamegraph/src/FlameGraph/dataTransform.ts b/packages/grafana-flamegraph/src/FlameGraph/dataTransform.ts
index 51b41f97397..b4d545e90de 100644
--- a/packages/grafana-flamegraph/src/FlameGraph/dataTransform.ts
+++ b/packages/grafana-flamegraph/src/FlameGraph/dataTransform.ts
@@ -46,7 +46,7 @@ export function nestedSetToLevels(
   let offset = 0;
 
   let parent: LevelItem | undefined = undefined;
-  const uniqueLabels: Record<string, LevelItem[]> = {};
+  const uniqueLabels: Record<string, LevelItem[]> = Object.create(null);
 
   for (let i = 0; i < container.data.length; i++) {
     const currentLevel = container.getLevel(i);
diff --git a/packages/grafana-flamegraph/src/TopTable/FlameGraphTopTableContainer.tsx b/packages/grafana-flamegraph/src/TopTable/FlameGraphTopTableContainer.tsx
index 1ee3f172fa4..b3a1be9a3b3 100644
--- a/packages/grafana-flamegraph/src/TopTable/FlameGraphTopTableContainer.tsx
+++ b/packages/grafana-flamegraph/src/TopTable/FlameGraphTopTableContainer.tsx
@@ -56,7 +56,7 @@ const FlameGraphTopTableContainer = memo(
     const table = useMemo(() => {
       // Group the data by label, we show only one row per label and sum the values
       // TODO: should be by filename + funcName + linenumber?
-      let filteredTable: { [key: string]: TableData } = {};
+      let filteredTable: { [key: string]: TableData } = Object.create(null);
       for (let i = 0; i < data.data.length; i++) {
         const value = data.getValue(i);
         const valueRight = data.getValueRight(i);