diff --git a/fhem/www/pgm2/darksvg_style.css b/fhem/www/pgm2/darksvg_style.css
index 6b3734376..fe7836e07 100644
--- a/fhem/www/pgm2/darksvg_style.css
+++ b/fhem/www/pgm2/darksvg_style.css
@@ -7,6 +7,7 @@ text.paste { text-decoration:underline; stroke:none; fill:blue; cursor:pointer;}
 
 
 path.SVGplot     { stroke:black; fill:none; }
+rect.SVGplot     { stroke:black; fill:none; }
 polyline.SVGplot { stroke:black; fill:none; }
 .border  { stroke:black; fill:url(#gr_bg);}
 .vgrid   { stroke:gray; stroke-dasharray:2,6;}
diff --git a/fhem/www/pgm2/svg_style.css b/fhem/www/pgm2/svg_style.css
index a15cf0df0..ff5d41e31 100644
--- a/fhem/www/pgm2/svg_style.css
+++ b/fhem/www/pgm2/svg_style.css
@@ -6,6 +6,7 @@ text.legend { cursor:pointer; }
 circle#svgmarker { color:#278727; opacity:0.5; }
 
 path.SVGplot     { stroke:black; fill:none; }
+rect.SVGplot     { stroke:black; fill:none; }
 polyline.SVGplot { stroke:black; fill:none; }
 .border  { stroke:black; fill:url(#gr_bg); }
 .vgrid   { stroke:gray;  stroke-dasharray:2,6; }