diff --git a/backend-shared/plannershared.cpp b/backend-shared/plannershared.cpp
index d35c1e676..a83a3bd56 100644
--- a/backend-shared/plannershared.cpp
+++ b/backend-shared/plannershared.cpp
@@ -6,12 +6,6 @@
 #include "qt-models/diveplannermodel.h"
 #include "qt-models/cylindermodel.h"
 
-plannerShared *plannerShared::instance()
-{
-    static plannerShared *self = new plannerShared;
-    return self;
-}
-
 // Planning values
 deco_mode plannerShared::planner_deco_mode()
 {
diff --git a/backend-shared/plannershared.h b/backend-shared/plannershared.h
index 39acf98db..d3e9f9fe4 100644
--- a/backend-shared/plannershared.h
+++ b/backend-shared/plannershared.h
@@ -16,8 +16,6 @@ class plannerShared: public QObject {
 	Q_OBJECT
 
 public:
-	static plannerShared *instance();
-
 	// Planning data
 	static deco_mode planner_deco_mode();
 	static int reserve_gas();
@@ -53,9 +51,6 @@ public slots:
 	static void set_bottompo2(double value);
 	static void set_decopo2(double value);
 	static void set_bestmixend(int value);
-
-private:
-	plannerShared() {}
 };
 
 #endif // PLANNERSHARED_H
diff --git a/desktop-widgets/diveplanner.cpp b/desktop-widgets/diveplanner.cpp
index 70aaa22e0..eeb59e880 100644
--- a/desktop-widgets/diveplanner.cpp
+++ b/desktop-widgets/diveplanner.cpp
@@ -466,7 +466,7 @@ PlannerSettingsWidget::PlannerSettingsWidget(QWidget *parent, Qt::WindowFlags f)
 	connect(ui.display_runtime, &QAbstractButton::toggled, plannerModel, &DivePlannerPointsModel::setDisplayRuntime);
 	connect(ui.display_transitions, &QAbstractButton::toggled, plannerModel, &DivePlannerPointsModel::setDisplayTransitions);
 	connect(ui.safetystop, &QAbstractButton::toggled, plannerModel, &DivePlannerPointsModel::setSafetyStop);
-	connect(ui.reserve_gas, QOverload<int>::of(&QSpinBox::valueChanged), plannerShared::instance(), &plannerShared::set_reserve_gas);
+	connect(ui.reserve_gas, QOverload<int>::of(&QSpinBox::valueChanged), &plannerShared::set_reserve_gas);
 	connect(ui.ascRate75, QOverload<int>::of(&QSpinBox::valueChanged), plannerModel, &DivePlannerPointsModel::setAscrate75Display);
 	connect(ui.ascRate50, QOverload<int>::of(&QSpinBox::valueChanged), plannerModel, &DivePlannerPointsModel::setAscrate50Display);
 	connect(ui.ascRateStops, QOverload<int>::of(&QSpinBox::valueChanged), plannerModel, &DivePlannerPointsModel::setAscratestopsDisplay);
@@ -477,11 +477,11 @@ PlannerSettingsWidget::PlannerSettingsWidget(QWidget *parent, Qt::WindowFlags f)
 	connect(ui.gflow, QOverload<int>::of(&QSpinBox::valueChanged), plannerModel, &DivePlannerPointsModel::setGFLow);
 	connect(ui.vpmb_conservatism, QOverload<int>::of(&QSpinBox::valueChanged), plannerModel, &DivePlannerPointsModel::setVpmbConservatism);
 	connect(ui.backgasBreaks, &QAbstractButton::toggled, this, &PlannerSettingsWidget::setBackgasBreaks);
-	connect(ui.bailout, &QAbstractButton::toggled, plannerShared::instance(), &plannerShared::set_dobailout);
-	connect(ui.o2narcotic, &QAbstractButton::toggled, plannerShared::instance(), &plannerShared::set_o2narcotic);
+	connect(ui.bailout, &QAbstractButton::toggled, &plannerShared::set_dobailout);
+	connect(ui.o2narcotic, &QAbstractButton::toggled, &plannerShared::set_o2narcotic);
 	connect(ui.switch_at_req_stop, &QAbstractButton::toggled, plannerModel, &DivePlannerPointsModel::setSwitchAtReqStop);
-	connect(ui.min_switch_duration, QOverload<int>::of(&QSpinBox::valueChanged), plannerShared::instance(), &plannerShared::set_min_switch_duration);
-	connect(ui.surface_segment, QOverload<int>::of(&QSpinBox::valueChanged), plannerShared::instance(), plannerShared::set_surface_segment);
+	connect(ui.min_switch_duration, QOverload<int>::of(&QSpinBox::valueChanged), &plannerShared::set_min_switch_duration);
+	connect(ui.surface_segment, QOverload<int>::of(&QSpinBox::valueChanged), &plannerShared::set_surface_segment);
 	connect(ui.rebreathermode, QOverload<int>::of(&QComboBox::currentIndexChanged), plannerModel, &DivePlannerPointsModel::setRebreatherMode);
 	connect(ui.rebreathermode, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &PlannerSettingsWidget::setBailoutVisibility);
 
@@ -489,13 +489,13 @@ PlannerSettingsWidget::PlannerSettingsWidget(QWidget *parent, Qt::WindowFlags f)
 	connect(ui.buehlmann_deco, &QAbstractButton::clicked, [=] { disableDecoElements(BUEHLMANN); });
 	connect(ui.vpmb_deco, &QAbstractButton::clicked, [=] { disableDecoElements(VPMB); });
 
-	connect(ui.sacfactor, QOverload<double>::of(&QDoubleSpinBox::valueChanged), plannerShared::instance(), &plannerShared::set_sacfactor);
+	connect(ui.sacfactor, QOverload<double>::of(&QDoubleSpinBox::valueChanged), &plannerShared::set_sacfactor);
 	connect(ui.problemsolvingtime, QOverload<int>::of(&QSpinBox::valueChanged), plannerModel, &DivePlannerPointsModel::setProblemSolvingTime);
-	connect(ui.bottompo2, QOverload<double>::of(&QDoubleSpinBox::valueChanged), plannerShared::instance(), &plannerShared::set_bottompo2);
-	connect(ui.decopo2, QOverload<double>::of(&QDoubleSpinBox::valueChanged), plannerShared::instance(), &plannerShared::set_decopo2);
-	connect(ui.bestmixEND, QOverload<int>::of(&QSpinBox::valueChanged), plannerShared::instance(), &plannerShared::set_bestmixend);
-	connect(ui.bottomSAC, QOverload<double>::of(&QDoubleSpinBox::valueChanged), plannerShared::instance(), &plannerShared::set_bottomsac);
-	connect(ui.decoStopSAC, QOverload<double>::of(&QDoubleSpinBox::valueChanged), plannerShared::instance(), &plannerShared::set_decosac);
+	connect(ui.bottompo2, QOverload<double>::of(&QDoubleSpinBox::valueChanged), &plannerShared::set_bottompo2);
+	connect(ui.decopo2, QOverload<double>::of(&QDoubleSpinBox::valueChanged), &plannerShared::set_decopo2);
+	connect(ui.bestmixEND, QOverload<int>::of(&QSpinBox::valueChanged), &plannerShared::set_bestmixend);
+	connect(ui.bottomSAC, QOverload<double>::of(&QDoubleSpinBox::valueChanged), &plannerShared::set_bottomsac);
+	connect(ui.decoStopSAC, QOverload<double>::of(&QDoubleSpinBox::valueChanged), &plannerShared::set_decosac);
 
 	settingsChanged();
 	ui.gflow->setValue(prefs.gflow);
diff --git a/tests/testplannershared.cpp b/tests/testplannershared.cpp
index da4de48fb..d3de0526d 100644
--- a/tests/testplannershared.cpp
+++ b/tests/testplannershared.cpp
@@ -12,7 +12,6 @@ void TestPlannerShared::initTestCase()
 	QCoreApplication::setOrganizationName("Subsurface");
 	QCoreApplication::setOrganizationDomain("subsurface.hohndel.org");
 	QCoreApplication::setApplicationName("SubsurfaceTestPlannerShared");
-	plannerShared::instance();
 }