diff --git a/webapp/src/components/tests/util.test.ts b/webapp/src/components/tests/util.test.ts
index 0669d88..ac01d31 100644
--- a/webapp/src/components/tests/util.test.ts
+++ b/webapp/src/components/tests/util.test.ts
@@ -1,6 +1,8 @@
+import { readFile } from "node:fs/promises";
+import { type SelectedView, initSync } from "@ironcalc/wasm";
 import { expect, test } from "vitest";
 import { decreaseDecimalPlaces, increaseDecimalPlaces } from "../formatUtil";
-import { isNavigationKey } from "../util";
+import { getFullRangeToString, isNavigationKey } from "../util";
 
 test("checks arrow left is a navigation key", () => {
   expect(isNavigationKey("ArrowLeft")).toBe(true);
@@ -24,3 +26,20 @@ test("decrease decimals", () => {
     'dddd"," mmmm dd"," yyyy',
   );
 });
+
+test("format range to get the full formula", async () => {
+  const buffer = await readFile("node_modules/@ironcalc/wasm/wasm_bg.wasm");
+  initSync(buffer);
+
+  const selectedView: SelectedView = {
+    sheet: 0,
+    row: 1,
+    column: 8,
+    range: [1, 8, 1, 8],
+    top_row: 1,
+    left_column: 8,
+  };
+  const worksheetNames = ["Sheet1", "Notes"];
+
+  expect(getFullRangeToString(selectedView, worksheetNames)).toBe("Sheet1!H1");
+});
diff --git a/webapp/src/components/util.ts b/webapp/src/components/util.ts
index e826081..3b1a0bb 100644
--- a/webapp/src/components/util.ts
+++ b/webapp/src/components/util.ts
@@ -1,10 +1,6 @@
 import type { Area, Cell } from "./types";
 
-import {
-  type SelectedView,
-  type WorksheetProperties,
-  columnNameFromNumber,
-} from "@ironcalc/wasm";
+import { type SelectedView, columnNameFromNumber } from "@ironcalc/wasm";
 
 /**
  *  Returns true if the keypress should start editing
@@ -68,12 +64,11 @@ export function rangeToStr(
 
 export function getFullRangeToString(
   selectedView: SelectedView,
-  worksheets: WorksheetProperties[], // solo pasar names
+  worksheetNames: string[],
 ): string {
   // order of values is confusing compared to rangeToStr range type, needs refactoring for consistency
   const [rowStart, columnStart, rowEnd, columnEnd] = selectedView.range;
-  const sheetNames = worksheets.map((s) => s.name);
-  const sheetName = `${sheetNames[selectedView.sheet]}!`;
+  const sheetName = `${worksheetNames[selectedView.sheet]}!`;
 
   if (rowStart === rowEnd && columnStart === columnEnd) {
     return `${sheetName}${columnNameFromNumber(columnStart)}${rowStart}`;