diff --git a/PySimpleGUIQt/PySimpleGUIQt.py b/PySimpleGUIQt/PySimpleGUIQt.py
index 6d51f0e9..0ee709df 100644
--- a/PySimpleGUIQt/PySimpleGUIQt.py
+++ b/PySimpleGUIQt/PySimpleGUIQt.py
@@ -1052,7 +1052,7 @@ class Multiline(Element):
             self.QT_TextEdit.setDisabled(True)
         elif disabled is False:
             self.QT_TextEdit.setDisabled(False)
-        if readony is True:
+        if readonly is True:
             self.QT_TextEdit.setReadOnly(True)
         elif readonly is False:
             self.QT_TextEdit.setReadOnly(False)