diff --git a/examples/solar-monitoring.py b/examples/solar-monitoring.py
index d334ab8..c9880c4 100644
--- a/examples/solar-monitoring.py
+++ b/examples/solar-monitoring.py
@@ -77,7 +77,7 @@ try:
     drawblack.text((2, 64), 'Batterie Entladen', font = font16, fill = 0)
     drawblack.text((2, 80), 'Auto Laden', font = font16, fill = 0)
 
-    drawblack.text((100, 80), charge_point_power, font = font16, fill = 0)
+    drawblack.text((100, 80), str(charge_point_power), font = font16, fill = 0)
     epd.display(epd.getbuffer(HBlackimage), epd.getbuffer(HRYimage))