diff --git a/openpype/widgets/message_window.py b/openpype/widgets/message_window.py
index 8301f5e8f2..2b186475ee 100644
--- a/openpype/widgets/message_window.py
+++ b/openpype/widgets/message_window.py
@@ -113,7 +113,7 @@ class ScrollMessageBox(QtWidgets.QDialog):
             message_len = max(message_len, len(message))
 
         # guess size of scrollable area
-        max_width = QtWidgets.QApplication.desktop().availableGeometry().width
+        max_width = QtWidgets.QApplication.desktop().availableGeometry().width()
         scroll_widget.setMinimumWidth(
             min(max_width, message_len * 6)
         )