diff --git a/app/paint/gimpmybrushcore.c b/app/paint/gimpmybrushcore.c
index ac823e5ba8..5a6f7ec344 100644
--- a/app/paint/gimpmybrushcore.c
+++ b/app/paint/gimpmybrushcore.c
@@ -82,8 +82,7 @@ static void      gimp_mybrush_core_motion         (GimpPaintCore     *paint_core
                                                    GimpSymmetry      *sym,
                                                    guint32            time,
                                                    gfloat             view_zoom,
-                                                   gfloat             view_rotation,
-                                                   gfloat             barrel_rotation);
+                                                   gfloat             view_rotation);
 static void      gimp_mybrush_core_create_brushes (GimpMybrushCore   *mybrush,
                                                    GimpDrawable      *drawable,
                                                    GimpPaintOptions  *paint_options,
@@ -234,7 +233,7 @@ gimp_mybrush_core_paint (GimpPaintCore    *paint_core,
     case GIMP_PAINT_STATE_MOTION:
       gimp_mybrush_core_motion (paint_core, drawables->data, paint_options,
                                 sym, time, mybrush_options->view_zoom,
-                                mybrush_options->view_rotation, 1.0f);
+                                mybrush_options->view_rotation);
       break;
 
     case GIMP_PAINT_STATE_FINISH:
@@ -256,8 +255,7 @@ gimp_mybrush_core_motion (GimpPaintCore    *paint_core,
                           GimpSymmetry     *sym,
                           guint32           time,
                           gfloat            view_zoom,
-                          gfloat            view_rotation,
-                          gfloat            barrel_rotation)
+                          gfloat            view_rotation)
 {
   GimpMybrushCore  *mybrush = GIMP_MYBRUSH_CORE (paint_core);
   MyPaintRectangle  rect;
@@ -307,7 +305,7 @@ gimp_mybrush_core_motion (GimpPaintCore    *paint_core,
                                      1.0f, /* Pretend the cursor hasn't moved in a while */
                                      view_zoom,
                                      view_rotation,
-                                     barrel_rotation);
+                                     coords.wheel);
         }
 
       dt = 0.015;
@@ -378,7 +376,7 @@ gimp_mybrush_core_motion (GimpPaintCore    *paint_core,
                                  dt,
                                  view_zoom,
                                  view_rotation,
-                                 barrel_rotation);
+                                 coords.wheel);
     }
 
   mybrush->private->last_time = time;