diff --git a/main/astrodatagui/AstrodataGUI.py b/main/astrodatagui/AstrodataGUI.py
index 64bf247..50beb29 100644
--- a/main/astrodatagui/AstrodataGUI.py
+++ b/main/astrodatagui/AstrodataGUI.py
@@ -217,9 +217,9 @@ class AstrodataGUI(QtWidgets.QMainWindow):
                     self.updateFlaredetectionWidgetFold()
 
                 case self.cbPlotPeriodogramEnable:
-                    self.cbPlotFoldEnable.blockSignals(True)
-                    self.cbPlotFoldEnable.setChecked(False)
-                    self.cbPlotFoldEnable.blockSignals(False)
+                    self.cbPlotFlattenPlotEnable.blockSignals(True)
+                    self.cbPlotFlattenPlotEnable.setChecked(False)
+                    self.cbPlotFlattenPlotEnable.blockSignals(False)
                     self.cbPlotFoldEnable.blockSignals(True)
                     self.cbPlotFoldEnable.setChecked(False)
                     self.cbPlotFoldEnable.blockSignals(False)