diff --git a/bauh/api/abstract/handler.py b/bauh/api/abstract/handler.py
index ef766d42..393ede9c 100644
--- a/bauh/api/abstract/handler.py
+++ b/bauh/api/abstract/handler.py
@@ -21,7 +21,8 @@ class ProcessWatcher:
                              confirmation_label: str = None, deny_label: str = None, deny_button: bool = True,
                              window_cancel: bool = False, confirmation_button: bool = True,
                              min_width: Optional[int] = None,
-                             min_height: Optional[int] = None) -> bool:
+                             min_height: Optional[int] = None,
+                             max_width: Optional[int] = None) -> bool:
         """
         request a user confirmation. In the current GUI implementation, it shows a popup to the user.
         :param title: popup title
@@ -34,6 +35,7 @@ class ProcessWatcher:
         :param confirmation_button: if the confirmation button should be displayed
         :param min_width: minimum width for the confirmation dialog
         :param min_height: minimum height for the confirmation dialog
+        :param max_width: maximum width for the confirmation dialog
         :return: if the request was confirmed by the user
         """
         pass
diff --git a/bauh/view/qt/dialog.py b/bauh/view/qt/dialog.py
index ae867a0f..13ffc0f5 100644
--- a/bauh/view/qt/dialog.py
+++ b/bauh/view/qt/dialog.py
@@ -35,7 +35,7 @@ class ConfirmationDialog(QDialog):
                  widgets: Optional[List[QWidget]] = None, confirmation_button: bool = True, deny_button: bool = True,
                  window_cancel: bool = False, confirmation_label: Optional[str] = None, deny_label: Optional[str] = None,
                  confirmation_icon: bool = True, min_width: Optional[int] = None,
-                 min_height: Optional[int] = None):
+                 min_height: Optional[int] = None, max_width: Optional[int] = None):
         super(ConfirmationDialog, self).__init__()
 
         if not window_cancel:
@@ -46,6 +46,9 @@ class ConfirmationDialog(QDialog):
         self.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.Preferred)
         self.setMinimumWidth(min_width if min_width and min_width > 0 else 250)
 
+        if max_width is not None and max_width > 0:
+            self.setMaximumWidth(max_width)
+
         if isinstance(min_height, int) and min_height > 0:
             self.setMinimumHeight(min_height)
 
diff --git a/bauh/view/qt/thread.py b/bauh/view/qt/thread.py
index 42a65d8b..adece32f 100644
--- a/bauh/view/qt/thread.py
+++ b/bauh/view/qt/thread.py
@@ -60,13 +60,14 @@ class AsyncAction(QThread, ProcessWatcher):
                              window_cancel: bool = False,
                              confirmation_button: bool = True,
                              min_width: Optional[int] = None,
-                             min_height: Optional[int] = None) -> bool:
+                             min_height: Optional[int] = None,
+                             max_width: Optional[int] = None) -> bool:
         self.wait_confirmation = True
         self.signal_confirmation.emit({'title': title, 'body': body, 'components': components,
                                        'confirmation_label': confirmation_label, 'deny_label': deny_label,
                                        'deny_button': deny_button, 'window_cancel': window_cancel,
                                        'confirmation_button': confirmation_button, 'min_width': min_width,
-                                       'min_height': min_height})
+                                       'min_height': min_height, 'max_width': max_width})
         self.wait_user()
         return self.confirmation_res
 
diff --git a/bauh/view/qt/window.py b/bauh/view/qt/window.py
index 23d6cbc3..1b3273e3 100755
--- a/bauh/view/qt/window.py
+++ b/bauh/view/qt/window.py
@@ -559,7 +559,8 @@ class ManageWindow(QWidget):
                                   window_cancel=msg['window_cancel'],
                                   confirmation_button=msg.get('confirmation_button', True),
                                   min_width=msg.get('min_width'),
-                                  min_height=msg.get('min_height'))
+                                  min_height=msg.get('min_height'),
+                                  max_width=msg.get('max_width'))
         diag.ask()
         res = diag.confirmed
         self.thread_animate_progress.animate()