diff --git a/appl/popper/popper.h b/appl/popper/popper.h
index 2cff80b68..23e5d3898 100644
--- a/appl/popper/popper.h
+++ b/appl/popper/popper.h
@@ -355,3 +355,4 @@ int pop_maildir_update (POP*);
 int changeuser(POP*, struct passwd*);
 void parse_header(MsgInfoList*, char*);
 int add_missing_headers(POP*, MsgInfoList*);
+int login_user(POP *p);