diff --git a/filters.py b/filters.py
index 1382f3ded..244e990a7 100644
--- a/filters.py
+++ b/filters.py
@@ -100,7 +100,9 @@ def remove_global_filter(base_dir: str, words: str) -> bool:
 def _is_twitter_post(content: str) -> bool:
     """Returns true if the given post content is a retweet or twitter crosspost
     """
-    if '/twitter.' in content or '@twitter.' in content:
+    if '/twitter.' in content or \
+       '/nitter.' in content or \
+       '@twitter.' in content:
         return True
     if '>RT <' in content:
         return True