diff --git a/demo/python/rundemo.py b/demo/python/rundemo.py
index 78ec494fd..edfda31e8 100644
--- a/demo/python/rundemo.py
+++ b/demo/python/rundemo.py
@@ -352,6 +352,16 @@ images_.append('demo_low.jpg')
 im.save('demo.tif', 'tiff')
 images_.append('demo.tif')
 
+im.save('demo.webp', 'webp')
+images_.append('demo.webp')
+
+im.save('demo_med.webp', 'webp80')
+images_.append('demo_med.webp')
+
+im.save('demo_low.webp', 'webp50')
+images_.append('demo_low.webp')
+
+
 # Render cairo examples
 if HAS_PYCAIRO_MODULE and mapnik.has_pycairo():