diff --git a/scripts/size.ts b/scripts/size.ts
index 2190fd9ef..f9da8052d 100644
--- a/scripts/size.ts
+++ b/scripts/size.ts
@@ -22,6 +22,7 @@ const readStats = async (path: string): Promise<Record<string, number>> => {
 };
 
 const formatBytes = (bytes: number): string => {
+  bytes = Math.abs(bytes);
   if (bytes == 0) {
     return '0 Bytes';
   }