diff --git a/src/brush.c b/src/brush.c
index ca7fff7a..c44f8663 100644
--- a/src/brush.c
+++ b/src/brush.c
@@ -1299,6 +1299,9 @@ void Capture_brush_with_lasso(int vertices, short * points,short clear)
             }
           }
         }
+    if (clear)
+      Update_part_of_screen(start_x,start_y,end_x-start_x+1,end_y-start_y+1);
+
     // Grab palette
     memcpy(Brush_original_palette, Main_palette,sizeof(T_Palette));
     // Init colormap
diff --git a/src/brush_ops.c b/src/brush_ops.c
index 046621c0..c9e343a9 100644
--- a/src/brush_ops.c
+++ b/src/brush_ops.c
@@ -491,7 +491,6 @@ void Brush_0_5(void)
     Brush_offset_Y=(Brush_offset_Y/Snap_height)*Snap_height;
   }
   
-  End_of_modification();
   End_of_modification();
   Return_to_draw_mode();
 }
@@ -605,6 +604,9 @@ void Polybrush_12_8(void)
     free(Polyfill_table_of_points);
     Polyfill_table_of_points = NULL;
 
+    if (click==RIGHT_SIDE)
+      End_of_modification();
+
     // On raffiche l'écran pour effacer les traits en xor et pour raffraichir
     // l'écran si on a découpé une partie de l'image en prenant la brosse.
     Display_all_screen();
@@ -617,8 +619,6 @@ void Polybrush_12_8(void)
       Brush_offset_Y=(Brush_offset_Y/Snap_height)*Snap_height;
     }
     
-    if (click==RIGHT_SIDE)
-      End_of_modification();
     Return_to_draw_mode();
     Display_cursor();
   }