diff --git a/guessit/rules/match_processors.py b/guessit/rules/match_processors.py
index 0b49372..7cdb061 100644
--- a/guessit/rules/match_processors.py
+++ b/guessit/rules/match_processors.py
@@ -18,3 +18,4 @@ def strip(match, chars=seps):
         match.end -= 1
     if not match:
         return False
+    return None