diff --git a/docs/changes/4.1.3.md b/docs/changes/4.1.3.md
index fa7d307f63..63f1e96ff2 100644
--- a/docs/changes/4.1.3.md
+++ b/docs/changes/4.1.3.md
@@ -41,6 +41,7 @@ Changes in command line arguments:
 - [NXDRIVE-1666](https://jira.nuxeo.com/browse/NXDRIVE-1666): Handle lock conflicts in DirectEdit
 - [NXDRIVE-1667](https://jira.nuxeo.com/browse/NXDRIVE-1667): Filter out any error in `get_opened_files()`
 - [NXDRIVE-1668](https://jira.nuxeo.com/browse/NXDRIVE-1668): Handle `TrashPermissionError` when moving a file to the trash
+- [NXDRIVE-1672](https://jira.nuxeo.com/browse/NXDRIVE-1672): Ensure `Application.update_status()` is passed an Engine
 - [NXDRIVE-1677](https://jira.nuxeo.com/browse/NXDRIVE-1677): [Windows] Copy-paste and rename a local file while Drive is running does not work
 - [NXDRIVE-1682](https://jira.nuxeo.com/browse/NXDRIVE-1682): Make the updater more robust against inappropriate server response
 
diff --git a/nxdrive/gui/application.py b/nxdrive/gui/application.py
index f358a0365a..4e5fe2da5a 100644
--- a/nxdrive/gui/application.py
+++ b/nxdrive/gui/application.py
@@ -512,7 +512,7 @@ def _file_already_exists(self, oldpath: Path, newpath: Path) -> None:
             newpath.unlink()
 
     @pyqtSlot(object)
-    def dropped_engine(self, engine: "Engine") -> None:
+    def dropped_engine(self, engine: Engine) -> None:
         # Update icon in case the engine dropped was syncing
         self.change_systray_icon()
 
@@ -570,7 +570,7 @@ def refresh_conflicts(self, uid: str) -> None:
         self.ignoreds_model.addFiles(self.api.get_unsynchronizeds(uid))
 
     @pyqtSlot()
-    def show_conflicts_resolution(self, engine: "Engine") -> None:
+    def show_conflicts_resolution(self, engine: Engine) -> None:
         """ Display the conflicts/errors window. """
         self.refresh_conflicts(engine.uid)
         self._window_root(self.conflicts_window).setEngine.emit(engine.uid)
@@ -622,7 +622,7 @@ def destroyed_filters_dialog(self) -> None:
         self.filters_dlg = None
 
     @pyqtSlot()
-    def show_filters(self, engine: "Engine") -> None:
+    def show_filters(self, engine: Engine) -> None:
         if self.filters_dlg:
             self.filters_dlg.close()
             self.filters_dlg = None
@@ -722,7 +722,7 @@ def auth() -> None:
         dialog.exec_()
 
     @pyqtSlot(object)
-    def _connect_engine(self, engine: "Engine") -> None:
+    def _connect_engine(self, engine: Engine) -> None:
         engine.syncStarted.connect(self.change_systray_icon)
         engine.syncCompleted.connect(self.change_systray_icon)
         engine.invalidAuthentication.connect(self.change_systray_icon)
@@ -1251,15 +1251,18 @@ def _handle_connection(self) -> None:
             del con
         log.info("Successfully closed server socket")
 
-    def update_status(self, engine: "Engine") -> None:
+    def update_status(self, engine: Engine) -> None:
         """
         Update the systray status for synchronization,
         conflicts/errors and software updates.
         """
         sync_state = error_state = update_state = ""
 
+        if not isinstance(engine, Engine):
+            log.error(f"Need an Engine, got {engine!r}")
+            return
+
         update_state = self.manager.updater.status
-        self.refresh_conflicts(engine.uid)
 
         # Check synchronization state
         if self.manager.restart_needed: