diff --git a/web/src/components/projects/DatasetUpload.vue b/web/src/components/projects/DatasetUpload.vue
index 0e5a27c7..6be2458e 100644
--- a/web/src/components/projects/DatasetUpload.vue
+++ b/web/src/components/projects/DatasetUpload.vue
@@ -75,7 +75,7 @@ const valid = computed(() => {
       return (
         l.name &&
         l.files.length &&
-        fileUploadRules.every((rule) => rule(l.files) === undefined) &&
+        fileUploadRules.every((rule) => rule(l.files) === true) &&
         (l.frame_method === "single" || l.frame_property)
       );
     })