diff --git a/package.json b/package.json
index 8f2d76e..796dd97 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "monofile",
-  "version": "1.3.1",
+  "version": "1.3.2",
   "description": "Discord-based file sharing",
   "main": "index.js",
   "scripts": {
diff --git a/src/server/lib/files.ts b/src/server/lib/files.ts
index 40fd33d..473f2ba 100644
--- a/src/server/lib/files.ts
+++ b/src/server/lib/files.ts
@@ -320,7 +320,7 @@ export default class Files {
 
                 }
 
-                if (!file.sizeInBytes) file_updates.sizeInBytes = atSIB.reduce((a,b) => a+b);
+                if (!file.sizeInBytes) file_updates.sizeInBytes = atSIB.reduce((a,b) => a+b, 0);
                 if (!file.chunkSize) file_updates.chunkSize = atSIB[0]
                 if (Object.keys(file_updates).length) { // if file_updates not empty
                     // i gotta do these weird workarounds, ts is weird sometimes