diff --git a/rtengine/spot.cc b/rtengine/spot.cc
index b12f5bc40..2244d882e 100644
--- a/rtengine/spot.cc
+++ b/rtengine/spot.cc
@@ -106,17 +106,8 @@ public:
                 return *this;
             }
 
-            /*
-            float fv = float(v);
-            x1 = int(float(x1) / fv + 0.5f);
-            y1 = int(float(y1) / fv + 0.5f);
-            x2 = int(float(x2) / fv + 0.5f);
-            y2 = int(float(y2) / fv + 0.5f);
-            */
-
-            // Aletrnate rounding possibility
             int w = x2 - x1 + 1;
-            int h = x2 - x1 + 1;
+            int h = y2 - y1 + 1;
             w = w / v + (w % v > 0);
             h = h / v + (h % v > 0);
             x1 /= v;
@@ -188,7 +179,7 @@ public:
         }
         spotArea /= v;
         imgArea /= v;
-        radius = radius / float(v);
+        radius /= float(v);
         featherRadius = getWidth() / 2.f;
         // intersectionArea doesn't need resize, because it's set after resizing
         return *this;
diff --git a/rtgui/spot.cc b/rtgui/spot.cc
index 9c5702aa3..9a957f77a 100644
--- a/rtgui/spot.cc
+++ b/rtgui/spot.cc
@@ -432,7 +432,7 @@ void Spot::deleteSelectedEntry()
 }
 
 // TODO
-CursorShape Spot::getCursor (int objectID)
+CursorShape Spot::getCursor (int objectID) const
 {
     return CSHandOpen;
 }
diff --git a/rtgui/spot.h b/rtgui/spot.h
index eea5e8933..aa0daa4ca 100644
--- a/rtgui/spot.h
+++ b/rtgui/spot.h
@@ -103,7 +103,7 @@ public:
     void setBatchMode (bool batchMode) override;
 
     // EditSubscriber interface
-    CursorShape getCursor (int objectID);
+    CursorShape getCursor (int objectID) const;
     bool mouseOver (int modifierKey) override;
     bool button1Pressed (int modifierKey) override;
     bool button1Released () override;
@@ -117,7 +117,7 @@ public:
     void switchOffEditMode () override;
 
     //TweakOperator interface
-    void tweakParams(rtengine::procparams::ProcParams& pparams);
+    void tweakParams(rtengine::procparams::ProcParams& pparams) override;
 
     rtengine::ProcEvent EvSpotEnabled;
     rtengine::ProcEvent EvSpotEnabledOPA; // used to toggle-on the Spot 'On Preview Adjustment' mode