diff --git a/app/filter.py b/app/filter.py
index 66cced7..5fe5115 100644
--- a/app/filter.py
+++ b/app/filter.py
@@ -123,7 +123,7 @@ class Filter:
         return soup
 
     def remove_site_blocks(self, soup) -> None:
-        if not self.config.block:
+        if not self.config.block or not soup.body:
             return
         search_string = ' '.join(['-site:' +
                                  _ for _ in self.config.block.split(',')])