diff --git a/common/lc_blenderpreferences.cpp b/common/lc_blenderpreferences.cpp
index 7a400eb2..70655247 100644
--- a/common/lc_blenderpreferences.cpp
+++ b/common/lc_blenderpreferences.cpp
@@ -26,6 +26,7 @@
 #include "lc_http.h"
 #include "lc_zipfile.h"
 #include "lc_file.h"
+#include "lc_qutils.h"
 #include "project.h"
 
 #if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
diff --git a/common/lc_instructionsdialog.cpp b/common/lc_instructionsdialog.cpp
index f6f315cf..2a3cbe94 100644
--- a/common/lc_instructionsdialog.cpp
+++ b/common/lc_instructionsdialog.cpp
@@ -576,8 +576,8 @@ lcInstructionsDialog::lcInstructionsDialog(QWidget* Parent, Project* Project)
 	connect(mPrintAction, &QAction::triggered, this, &lcInstructionsDialog::ShowPrintDialog);
 	connect(mVerticalPageAction, &QAction::toggled, this, &lcInstructionsDialog::UpdatePageSettings);
 	connect(mHorizontalPageAction, &QAction::toggled, this, &lcInstructionsDialog::UpdatePageSettings);
-	connect(mRowsSpinBox, &QSpinBox::valueChanged, this, &lcInstructionsDialog::UpdatePageSettings);
-	connect(mColumnsSpinBox, &QSpinBox::valueChanged, this, &lcInstructionsDialog::UpdatePageSettings);
+	connect(mRowsSpinBox, qOverload<int>(&QSpinBox::valueChanged), this, &lcInstructionsDialog::UpdatePageSettings);
+	connect(mColumnsSpinBox, qOverload<int>(&QSpinBox::valueChanged), this, &lcInstructionsDialog::UpdatePageSettings);
 }
 
 void lcInstructionsDialog::ShowPrintDialog()