diff --git a/src/message.c b/src/message.c
index b24013e..8d34c12 100644
--- a/src/message.c
+++ b/src/message.c
@@ -766,7 +766,7 @@
  * ":messages" command.
  */
     void
-ex_messages(exarg_T *eap UNUSED)
+ex_messages(exarg_T *eap)
 {
     struct msg_hist *p;
     char_u	    *s;