diff --git a/app/gui/oven_control/slider.cpp b/app/gui/oven_control/slider.cpp
index 78e41b5..7bbab93 100644
--- a/app/gui/oven_control/slider.cpp
+++ b/app/gui/oven_control/slider.cpp
@@ -243,8 +243,8 @@ void Slider::resizeEvent(QResizeEvent */*event*/)
 
 int Slider::calcSliderPosition(int mouseX)
 {
-    int x = qBound(grooveMin, mouseX, grooveMax);
-    qreal pos = (qreal) (x - grooveMin) / (grooveMax - grooveMin) * (maximum_ - minimum_) + minimum_;
+    int x = qBound(minSliderX, mouseX, maxSliderX);
+    qreal pos = (qreal) (x - minSliderX) / (maxSliderX - minSliderX) * (maximum_ - minimum_) + minimum_;
     return qRound(pos);
 }
 
@@ -255,8 +255,8 @@ int Slider::calcSubLength(int value)
 
 void Slider::updatePixmapPosition()
 {
-    grooveMin = (width() - sub.width()) / 2;
-    grooveMax = width() - grooveMin;
+    minSliderX = (width() - sub.width()) / 2;
+    maxSliderX = width() - minSliderX;
 
     groovePoint = QPoint((width() - groove.width()) / 2, (height() - groove.height()) / 2);
     subPoint = QPoint((width() - sub.width()) / 2, (height() - sub.height()) / 2);