diff --git a/src/utils/string/index.ts b/src/utils/string/index.ts
index c19572ae7c..423024e5ee 100644
--- a/src/utils/string/index.ts
+++ b/src/utils/string/index.ts
@@ -28,6 +28,7 @@ export const msToDuration = (ms: number): string => {
   if (seconds > 0) {
     return `${seconds}s`;
   }
+  return `${ms}ms`;
 };
 
 /**
diff --git a/src/utils/string/string.test.ts b/src/utils/string/string.test.ts
index 35b0197f13..bbb219de24 100644
--- a/src/utils/string/string.test.ts
+++ b/src/utils/string/string.test.ts
@@ -44,6 +44,10 @@ describe("msToDuration", () => {
     const ms = 25000;
     expect(msToDuration(ms)).toBe("25s");
   });
+  it("does not convert milli < 1s", () => {
+    const ms = 500;
+    expect(msToDuration(ms)).toBe("500ms");
+  });
 });
 
 describe("sortFunctionDate", () => {