diff --git a/src/number-input/NumberInput.ts b/src/number-input/NumberInput.ts
index 7ad69a2cf..8bc17d7a9 100644
--- a/src/number-input/NumberInput.ts
+++ b/src/number-input/NumberInput.ts
@@ -106,7 +106,10 @@ export const useNumberInput = createHook<
      * @see https://www.w3.org/TR/wai-aria-practices-1.1/#wai-aria-roles-states-and-properties-18
      * @see https://www.w3.org/TR/wai-aria-1.1/#aria-valuetext
      */
-    const ariaValueText = getAriaValueText?.(value) ?? String(value);
+    const ariaValueText =
+      value === null || value === ""
+        ? undefined
+        : getAriaValueText?.(value) ?? String(value);
 
     /**
      * The `onChange` handler filters out any character typed
diff --git a/src/number-input/__test__/NumberInput.test.tsx b/src/number-input/__test__/NumberInput.test.tsx
index 20c6ab6b1..69e332e3e 100644
--- a/src/number-input/__test__/NumberInput.test.tsx
+++ b/src/number-input/__test__/NumberInput.test.tsx
@@ -162,7 +162,7 @@ describe("NumberInput", () => {
   });
 
   test("NumberInput renders with no a11y violations", async () => {
-    const { container } = render(<NumberInputComp defaultValue={0} />);
+    const { container } = render(<NumberInputComp />);
     const results = await axe(container);
 
     expect(results).toHaveNoViolations();