diff --git a/packages/react-resizable-panels/src/utils/rects/getIntersectingRectangle.test.ts b/packages/react-resizable-panels/src/utils/rects/getIntersectingRectangle.test.ts
index 40959fc7..53e22999 100644
--- a/packages/react-resizable-panels/src/utils/rects/getIntersectingRectangle.test.ts
+++ b/packages/react-resizable-panels/src/utils/rects/getIntersectingRectangle.test.ts
@@ -4,7 +4,7 @@ import { Rectangle } from "./types";
 const emptyRect = { x: 0, y: 0, width: 0, height: 0 };
 const rect = { x: 25, y: 25, width: 50, height: 50 };
 
-function forkRect(partial: Partial<Rectangle>, baseRect: Rectangle = rect) {
+function forkRect(partial: Partial<Rectangle>) {
   return { ...rect, ...partial };
 }
 
diff --git a/packages/react-resizable-panels/src/utils/rects/intersects.test.ts b/packages/react-resizable-panels/src/utils/rects/intersects.test.ts
index 2cf38eca..2f550518 100644
--- a/packages/react-resizable-panels/src/utils/rects/intersects.test.ts
+++ b/packages/react-resizable-panels/src/utils/rects/intersects.test.ts
@@ -4,7 +4,7 @@ import { Rectangle } from "./types";
 const emptyRect = { x: 0, y: 0, width: 0, height: 0 };
 const rect = { x: 25, y: 25, width: 50, height: 50 };
 
-function forkRect(partial: Partial<Rectangle>, baseRect: Rectangle = rect) {
+function forkRect(partial: Partial<Rectangle>) {
   return { ...rect, ...partial };
 }