diff --git a/guilib/src/PreferencesDialog.cpp b/guilib/src/PreferencesDialog.cpp
index 09905e28..e654b331 100644
--- a/guilib/src/PreferencesDialog.cpp
+++ b/guilib/src/PreferencesDialog.cpp
@@ -441,8 +441,8 @@ PreferencesDialog::PreferencesDialog(QWidget * parent) :
 	connect(_ui->comboBox_cameraImages_gtFormat, SIGNAL(currentIndexChanged(int)), this, SLOT(makeObsoleteSourcePanel()));
 	connect(_ui->groupBox_depthFromScan, SIGNAL(toggled(bool)), this, SLOT(makeObsoleteSourcePanel()));
 	connect(_ui->groupBox_depthFromScan_fillHoles, SIGNAL(toggled(bool)), this, SLOT(makeObsoleteSourcePanel()));
-	connect(_ui->radioButton_depthFromScan_vertical, SIGNAL(stateChanged(int)), this, SLOT(makeObsoleteSourcePanel()));
-	connect(_ui->radioButton_depthFromScan_horizontal, SIGNAL(stateChanged(int)), this, SLOT(makeObsoleteSourcePanel()));
+	connect(_ui->radioButton_depthFromScan_vertical, SIGNAL(toggled(bool)), this, SLOT(makeObsoleteSourcePanel()));
+	connect(_ui->radioButton_depthFromScan_horizontal, SIGNAL(toggled(bool)), this, SLOT(makeObsoleteSourcePanel()));
 	connect(_ui->checkBox_depthFromScan_fillBorders, SIGNAL(stateChanged(int)), this, SLOT(makeObsoleteSourcePanel()));
 
 	connect(_ui->toolButton_cameraStereoImages_path_left, SIGNAL(clicked()), this, SLOT(selectSourceStereoImagesPathLeft()));