diff --git a/src/utils/svg.ts b/src/utils/svg.ts
index 263aca2..92e7c47 100644
--- a/src/utils/svg.ts
+++ b/src/utils/svg.ts
@@ -113,6 +113,8 @@ export function RemoveMargin(
   top?: number,
   right?: number
 ): { x: number, y: number, width: number, height: number } {
+  left = left ?? 0;
+  right = right ?? 0;
   bottom = bottom ?? 0;
   top = top ?? 0;
   x = RemoveXMargin(x, left);