1 files changed, 1 insertions, 1 deletions
diff --git a/src/client/views/collections/CollectionSubView.tsx b/src/client/views/collections/CollectionSubView.tsx
index 99373da04..5d32482c3 100644
--- a/src/client/views/collections/CollectionSubView.tsx
+++ b/src/client/views/collections/CollectionSubView.tsx
@@ -253,7 +253,7 @@ export function CollectionSubView<X>() {
 
         protected onInternalDrop(e: Event, de: DragManager.DropEvent): boolean {
             const { docDragData } = de.complete;
-            if (docDragData) {
+            if (docDragData && !docDragData.draggedDocuments.includes(this.Document)) {
                 let added;
                 const dropAction = docDragData.dropAction || docDragData.userDropAction;
                 const targetDocments = DocListCast(this.dataDoc[this._props.fieldKey]);