diff --git a/bauh/gems/flatpak/controller.py b/bauh/gems/flatpak/controller.py
index d3e21222..0a279119 100644
--- a/bauh/gems/flatpak/controller.py
+++ b/bauh/gems/flatpak/controller.py
@@ -118,7 +118,9 @@ class FlatpakManager(SoftwareManager):
         commit = commits[commit_idx + 1]
         watcher.change_substatus(self.i18n['flatpak.downgrade.reverting'])
         watcher.change_progress(50)
-        success = ProcessHandler(watcher).handle(SystemProcess(subproc=flatpak.downgrade(pkg.ref, commit, root_password), success_phrases=['Changes complete.', 'Updates complete.'], wrong_error_phrase='Warning:'))
+        success = ProcessHandler(watcher).handle(SystemProcess(subproc=flatpak.downgrade(pkg.ref, commit, root_password),
+                                                               success_phrases=['Changes complete.', 'Updates complete.'],
+                                                               wrong_error_phrase='Warning'))
         watcher.change_progress(100)
         return success
 
@@ -153,7 +155,7 @@ class FlatpakManager(SoftwareManager):
         return PackageHistory(pkg=pkg, history=commits, pkg_status_idx=status_idx)
 
     def install(self, pkg: FlatpakApplication, root_password: str, watcher: ProcessWatcher) -> bool:
-        res = ProcessHandler(watcher).handle(SystemProcess(subproc=flatpak.install(pkg.id, pkg.origin)))
+        res = ProcessHandler(watcher).handle(SystemProcess(subproc=flatpak.install(pkg.id, pkg.origin), wrong_error_phrase='Warning'))
 
         if res:
             try: