diff --git a/bin/dump-anydbm b/bin/dump-anydbm
index 689c9ca..1d1ae4b 100755
--- a/bin/dump-anydbm
+++ b/bin/dump-anydbm
@@ -39,7 +39,7 @@ if __name__ == "__main__":
     elif 'bsd' in which:
         correct_file = filename.split(".db")[0]
         correct_which = whichdb(correct_file)
-        if correct_which == ('dbm' or 'dbm.ndbm'):
+        if correct_which in ('dbm', 'dbm.ndbm'):
             filename = correct_file
             which = correct_which