diff --git a/recipes/horizons.recipe b/recipes/horizons.recipe
index 0105ca02e4..6103be063d 100644
--- a/recipes/horizons.recipe
+++ b/recipes/horizons.recipe
@@ -1,8 +1,8 @@
 #!/usr/bin/env python
 # vim:fileencoding=utf-8
-"""
+'''
 https://www.cirsd.org/en/horizons
-"""
+'''
 
 from calibre.web.feeds.news import BasicNewsRecipe, classes