diff --git a/backend/open_webui/apps/retrieval/utils.py b/backend/open_webui/apps/retrieval/utils.py
index f8c9ded5b..b796f0a75 100644
--- a/backend/open_webui/apps/retrieval/utils.py
+++ b/backend/open_webui/apps/retrieval/utils.py
@@ -334,7 +334,10 @@ def get_rag_context(
             elif file.get("collection_name"):
                 collection_names.append(file["collection_name"])
             elif file.get("id"):
-                collection_names.append(f"file-{file['id']}")
+                if file.get("legacy"):
+                    collection_names.append(f"{file['id']}")
+                else:
+                    collection_names.append(f"file-{file['id']}")
 
             collection_names = set(collection_names).difference(extracted_collections)
             if not collection_names:
diff --git a/backend/open_webui/migrations/versions/6a39f3d8e55c_add_knowledge_table.py b/backend/open_webui/migrations/versions/6a39f3d8e55c_add_knowledge_table.py
index 5521babd9..881e6ae64 100644
--- a/backend/open_webui/migrations/versions/6a39f3d8e55c_add_knowledge_table.py
+++ b/backend/open_webui/migrations/versions/6a39f3d8e55c_add_knowledge_table.py
@@ -65,6 +65,7 @@ def upgrade():
                 user_id=doc.user_id,
                 description=doc.name,
                 meta={
+                    "legacy": True,
                     "document": True,
                     "tags": json.loads(doc.content or "{}").get("tags", []),
                 },
diff --git a/src/lib/components/chat/MessageInput/Commands/Knowledge.svelte b/src/lib/components/chat/MessageInput/Commands/Knowledge.svelte
index ee151164a..aebcdf2e9 100644
--- a/src/lib/components/chat/MessageInput/Commands/Knowledge.svelte
+++ b/src/lib/components/chat/MessageInput/Commands/Knowledge.svelte
@@ -101,7 +101,12 @@
 					]
 				: [];
 
-		items = [...$knowledge, ...legacy_collections];
+		items = [...$knowledge, ...legacy_collections].map((item) => {
+			return {
+				...item,
+				...{ legacy: item?.legacy ?? item?.meta?.document ?? undefined }
+			};
+		});
 
 		fuse = new Fuse(items, {
 			keys: ['name', 'description']