diff --git a/paste.html b/paste.html
index 3819deb..9185f1f 100644
--- a/paste.html
+++ b/paste.html
@@ -108,7 +108,7 @@
         if (!!select_file.value.length ^ !!text.value.length) {
             // Check file size
             const size = select_file.files[0]?.size ?? 0;
-            if (size <= 0 || size > 10485760) {
+            if (size > 10485760) {
                 alert("Upload file size must not excess 10 MB.");
                 event.preventDefault();
                 return false;