diff --git a/@gramm/geom_raster.m b/@gramm/geom_raster.m
index 5b9631e..e31e90c 100644
--- a/@gramm/geom_raster.m
+++ b/@gramm/geom_raster.m
@@ -36,7 +36,7 @@
         ally=[temp_y(:) temp_y(:)+0.9 NaN(numel(temp_x),1)]';
         hndl=line(allx(:),ally(:),'color',draw_data.color,'lineWidth',draw_data.line_size);
     else
-        hndl=line(temp_x,temp_y,'LineStyle','none','Marker','o','MarkerEdgeColor','none','markerSize',draw_data.point_size,'MarkerFaceColor',draw_data.color);
+        hndl=line(temp_x(:),temp_y(:),'LineStyle','none','Marker','o','MarkerEdgeColor','none','markerSize',draw_data.point_size,'MarkerFaceColor',draw_data.color);
     end
     
 else