diff --git a/api/router.py b/api/router.py
index 5431202..b851ed7 100644
--- a/api/router.py
+++ b/api/router.py
@@ -239,7 +239,12 @@ async def open_file(body: dict, user: dict = Depends(current_user)):
                 dest = os.path.join(vault, os.path.basename(p))
                 shutil.copy2(p, dest)
             open_target = os.path.join(vault, os.path.basename(all_paths[0]))
-        uri = f"obsidian://open?path={quote(open_target, safe='/')}"
+        vault_name = os.path.basename(vault.rstrip("/")) if vault else ""
+        file_name = os.path.basename(open_target)
+        if vault_name:
+            uri = f"obsidian://open?vault={quote(vault_name)}&file={quote(file_name)}"
+        else:
+            uri = f"obsidian://open?path={quote(open_target, safe='/')}"
         obsidian_bin = shutil.which("obsidian") or "/usr/bin/obsidian"
         subprocess.Popen([obsidian_bin, uri])
     elif mode == "folder" and shutil.which("dolphin"):