diff --git a/freepost/database.py b/freepost/database.py
index d1c0ef2..d7133ba 100644
--- a/freepost/database.py
+++ b/freepost/database.py
@@ -19,7 +19,7 @@ db.create_function('SHA512', 1, lambda text:
 # function named "regexp" is added at run-time, then the "X REGEXP Y" operator
 # will be implemented as a call to "regexp(Y,X)".
 db.create_function('REGEXP', 2, lambda pattern, string:
-                                    re.match(pattern, string, flags=re.IGNORECASE) is not None)
+                                    re.search(pattern, string, flags=re.IGNORECASE) is not None)
 
 # Store a new session_id for a user that has logged in
 # The session token is stored in the user cookies during login, here