diff --git a/sites/arbitrary.py b/sites/arbitrary.py
index 6f401a2..d2864f2 100644
--- a/sites/arbitrary.py
+++ b/sites/arbitrary.py
@@ -80,10 +80,10 @@ class Arbitrary(Site):
         # Probably by changing it so that this returns a Chapter / Section.
         logger.info("Extracting chapter @ %s", url)
         soup = self._soup(url)
-        
+
         if not soup.select(definition.content_selector):
-            return '' 
-        
+            return ''
+
         content = soup.select(definition.content_selector)[0]
 
         if definition.filter_selector: