diff --git a/apps/client/src/widgets/collections/board/card.tsx b/apps/client/src/widgets/collections/board/card.tsx
index 68c1c1a37..bd377f2ec 100644
--- a/apps/client/src/widgets/collections/board/card.tsx
+++ b/apps/client/src/widgets/collections/board/card.tsx
@@ -7,6 +7,8 @@ import { ContextMenuEvent } from "../../../menus/context_menu";
 import { openNoteContextMenu } from "./context_menu";
 import { t } from "../../../services/i18n";
 
+export const CARD_CLIPBOARD_TYPE = "trilium/board-card";
+
 export interface CardDragData {
     noteId: string;
     branchId: string;
@@ -39,7 +41,7 @@ export default function Card({
     const handleDragStart = useCallback((e: DragEvent) => {
         e.dataTransfer!.effectAllowed = 'move';
         const data: CardDragData = { noteId: note.noteId, branchId: branch.branchId, fromColumn: column, index };
-        e.dataTransfer!.setData('text/plain', JSON.stringify(data));
+        e.dataTransfer!.setData(CARD_CLIPBOARD_TYPE, JSON.stringify(data));
     }, [note.noteId, branch.branchId, column, index]);
 
     const handleContextMenu = useCallback((e: ContextMenuEvent) => {
diff --git a/apps/client/src/widgets/collections/board/column.tsx b/apps/client/src/widgets/collections/board/column.tsx
index ab211ca1b..37e095a44 100644
--- a/apps/client/src/widgets/collections/board/column.tsx
+++ b/apps/client/src/widgets/collections/board/column.tsx
@@ -8,7 +8,7 @@ import { ContextMenuEvent } from "../../../menus/context_menu";
 import Icon from "../../react/Icon";
 import { t } from "../../../services/i18n";
 import BoardApi from "./api";
-import Card, { CardDragData } from "./card";
+import Card, { CARD_CLIPBOARD_TYPE, CardDragData } from "./card";
 import { JSX } from "preact/jsx-runtime";
 import froca from "../../../services/froca";
 import { DragData } from "../../note_tree";
@@ -173,6 +173,8 @@ function useDragging({ column, columnIndex, columnItems, isEditing }: DragContex
 
     const handleDragOver = useCallback((e: DragEvent) => {
         if (isEditing || draggedColumn || isDraggingRef.current) return; // Don't handle card drops when dragging columns
+        if (!e.dataTransfer?.types.includes(CARD_CLIPBOARD_TYPE)) return;
+
         e.preventDefault();
         setDropTarget(column);
 
@@ -213,7 +215,7 @@ function useDragging({ column, columnIndex, columnItems, isEditing }: DragContex
         setDropTarget(null);
         setDropPosition(null);
 
-        const data = e.dataTransfer?.getData("text");
+        const data = e.dataTransfer?.getData(CARD_CLIPBOARD_TYPE);
         if (!data) return;
 
         let draggedCard: CardDragData | DragData[];