diff --git a/monitor_wrap.h b/monitor_wrap.h
index 55be10b..2170b13 100644
--- a/monitor_wrap.h
+++ b/monitor_wrap.h
@@ -66,7 +66,7 @@
 #endif
 
 #ifdef USE_PAM
-void mm_start_pam(char *);
+void mm_start_pam(struct Authctxt *);
 u_int mm_do_pam_account(void);
 void *mm_sshpam_init_ctx(struct Authctxt *);
 int mm_sshpam_query(void *, char **, char **, u_int *, char ***, u_int **);