diff --git a/lib/gui_lite.py b/lib/gui_lite.py
index 6b9dcf91..14531df2 100644
--- a/lib/gui_lite.py
+++ b/lib/gui_lite.py
@@ -303,7 +303,7 @@ class MiniWindow(QDialog):
             self.amount_input.setText("")
 
     def check_button_status(self):
-        if (self.address_input.property("isValid") and
+        if (self.address_input.property("isValid") == True and
             len(self.amount_input.text()) > 0):
             self.send_button.setDisabled(False)
         else: