diff --git a/start.py b/start.py
index 4f655ab..074a2e8 100644
--- a/start.py
+++ b/start.py
@@ -216,7 +216,8 @@ class MainWindow(QMainWindow):
             lambda: self.open_file(self.ui.lRes1.text()))
         self.ui.bRes2.clicked.connect(
             lambda: self.open_file(self.ui.lRes2.text(), 'docx'))
-        self.ui.bCal.clicked.connect(self.cbma_cal(self.ui.lYear.text()))
+        self.ui.bCal.clicked.connect(
+            lambda: self.cbma_cal(self.ui.lYear.text()))
         self.ui.bOpenCalRes1.clicked.connect(
             lambda: self.open_file(self.ui.lCalRes1.text()))
         self.ui.bOpenCalRes2.clicked.connect(