diff --git a/src/views/Files/FilesPage.vue b/src/views/Files/FilesPage.vue
index 67b2e2a..bbdabef 100644
--- a/src/views/Files/FilesPage.vue
+++ b/src/views/Files/FilesPage.vue
@@ -841,6 +841,7 @@ function secondaryDragDelete() {
  * Enter the Compare page
  */
 function compareSubmit() {
+  if (primaryDragData.value.length === 0 || secondaryDragData.value.length === 0) return;
   const primaryType = primaryDragData.value[0].type;
   const secondaryType = secondaryDragData.value[0].type;
   const primaryId = primaryDragData.value[0].id;