diff --git a/main.py b/main.py
index 389de0a..65a9620 100644
--- a/main.py
+++ b/main.py
@@ -191,6 +191,8 @@ def unmountDisk(state: AppState) -> None:
             state.diskState = "disconnected"
     else:
         print("force unmounting")
+        subprocess.run(["fuser", "-km", f"/mnt/{state.config.diskSerial}"], check=False)
+        subprocess.run(["sync"], check=False)
         subprocess.run(
             [
                 "umount",