diff --git a/qglengine/widgets/primitiveeditor.cpp b/qglengine/widgets/primitiveeditor.cpp
index d05ec53..4ed22c0 100644
--- a/qglengine/widgets/primitiveeditor.cpp
+++ b/qglengine/widgets/primitiveeditor.cpp
@@ -9,6 +9,10 @@ PrimitiveEditor::PrimitiveEditor(QWidget *parent) : QWidget(parent), ui(new Ui::
 	view = 0;
 	can_replace = false;
 	ui->setupUi(this);
+#if QT_VERSION >= QT_VERSION_CHECK(5,12,0)
+	ui->spinSegments->setStepType(QAbstractSpinBox::AdaptiveDecimalStepType);
+	ui->spinSegments2->setStepType(QAbstractSpinBox::AdaptiveDecimalStepType);
+#endif
 	editors[Plane] << ui->widgetWidth;
 	editors[Plane] << ui->widgetLength;
 	editors[Cube] << ui->widgetWidth;
diff --git a/qglengine/widgets/primitiveeditor.ui b/qglengine/widgets/primitiveeditor.ui
index 7add853..2d2c9d9 100644
--- a/qglengine/widgets/primitiveeditor.ui
+++ b/qglengine/widgets/primitiveeditor.ui
@@ -269,9 +269,6 @@
            <property name="singleStep">
             <number>1</number>
            </property>
-           <property name="stepType">
-            <enum>QAbstractSpinBox::AdaptiveDecimalStepType</enum>
-           </property>
            <property name="value">
             <number>16</number>
            </property>
@@ -310,9 +307,6 @@
            <property name="singleStep">
             <number>1</number>
            </property>
-           <property name="stepType">
-            <enum>QAbstractSpinBox::AdaptiveDecimalStepType</enum>
-           </property>
            <property name="value">
             <number>16</number>
            </property>
diff --git a/qglengine/widgets/view_editor.cpp b/qglengine/widgets/view_editor.cpp
index d91e93c..cc216a2 100644
--- a/qglengine/widgets/view_editor.cpp
+++ b/qglengine/widgets/view_editor.cpp
@@ -29,6 +29,9 @@ ViewEditor::ViewEditor(QWidget * parent): QWidget(parent) {
 	view = 0;
 	active = true;
 	ui->checkCameraLight->setCheckState(Qt::PartiallyChecked);
+#if QT_VERSION >= QT_VERSION_CHECK(5,12,0)
+	ui->spinDepthStart->setStepType(QAbstractSpinBox::AdaptiveDecimalStepType);
+#endif
 }
 
 
diff --git a/qglengine/widgets/view_editor.ui b/qglengine/widgets/view_editor.ui
index a65a52d..744b0a5 100644
--- a/qglengine/widgets/view_editor.ui
+++ b/qglengine/widgets/view_editor.ui
@@ -252,9 +252,6 @@
           <property name="maximum">
            <double>999999999.000000000000000</double>
           </property>
-          <property name="stepType">
-           <enum>QAbstractSpinBox::AdaptiveDecimalStepType</enum>
-          </property>
           <property name="value">
            <double>1.000000000000000</double>
           </property>