diff --git a/src/wizcmds.c b/src/wizcmds.c
index c4c89f750..2c8554a8a 100644
--- a/src/wizcmds.c
+++ b/src/wizcmds.c
@@ -1782,6 +1782,7 @@ int
 wiz_show_nhuuid(void)
 {
     pline("The NHUUID for this game is { %s }.", svn.nhuuid);
+    return ECMD_OK;
 }
 
 /* the #wizmondiff command */