diff --git a/solar_edge.py b/solar_edge.py
index c39daba..5defd40 100755
--- a/solar_edge.py
+++ b/solar_edge.py
@@ -52,8 +52,8 @@ image = Image.open(bundle_dir + "/" + infile)
 font = ImageFont.truetype(bundle_dir + "/" + font_face, 19)
 
 draw = ImageDraw.Draw(image)
-draw.text((xpos, line1), str(co2)+" lbs", font=font, fill=fill_color)
-draw.text((xpos, line2), str(trees), font=font, fill=fill_color)
+draw.text((xpos, line1), "{:,} lbs".format(co2) , font=font, fill=fill_color)
+draw.text((xpos, line2), "{:,}".format(trees), font=font, fill=fill_color)
 image.save(outfile)