diff --git a/src/pray.c b/src/pray.c
index e7b6975fb..4e2dc741d 100644
--- a/src/pray.c
+++ b/src/pray.c
@@ -1244,6 +1244,8 @@ dosacrifice()
 		    Strcpy(dbuf, a_monnam(dmon));
 		    if (!strcmpi(dbuf, "it"))
 			Strcpy(dbuf, "something dreadful");
+		    else
+			dmon->mstrategy &= ~STRAT_APPEARMSG;
 		    You("have summoned %s!", dbuf);
 		    if (sgn(u.ualign.type) == sgn(dmon->data->maligntyp))
 			dmon->mpeaceful = TRUE;