diff --git a/lib/ChangeLog b/lib/ChangeLog
index c58fef2..ff32fcc 100644
--- a/lib/ChangeLog
+++ b/lib/ChangeLog
@@ -1,3 +1,7 @@
+2007-04-27 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
+
+	* smux.c: (smux_trap) Fix printf format to work with 64-bit size_t.
+
 2007-04-07 Paul Jakma <paul.jakma@sun.com>
 
 	* prefix.h: Add define to match IPv4 Link-Local addresses
diff --git a/lib/smux.c b/lib/smux.c
index 1bec120..8f809c0 100644
--- a/lib/smux.c
+++ b/lib/smux.c
@@ -1091,7 +1091,7 @@
               smux_oid_dump ("Trap", iname, inamelen);
             }
           smux_oid_dump ("Trap", oid, oid_len);
-          zlog_info ("BUFSIZ: %d // oid_len: %d", BUFSIZ, oid_len);
+          zlog_info ("BUFSIZ: %d // oid_len: %lu", BUFSIZ, (u_long)oid_len);
       }
 
       ret = smux_get (oid, &oid_len, 1, &val_type, &val, &val_len);