diff --git a/doc/fixes34.4 b/doc/fixes34.4
index f45f920d9..6e42a24d3 100644
--- a/doc/fixes34.4
+++ b/doc/fixes34.4
@@ -327,6 +327,8 @@ can't #force floor item while engulfed, levitating, or unskilled riding
 can't lock or unlock doors while engulfed
 if hero or monster standing on opened drawbridge survives its destruction,
 	fall into water or lava instead of remaining on top
+don't give a speed change message when an immobile monster is seen to be hit
+	by a wand of speed or slow monster
 
 
 Platform- and/or Interface-Specific Fixes
diff --git a/src/worn.c b/src/worn.c
index 33dcf8d2c..00eabda59 100644
--- a/src/worn.c
+++ b/src/worn.c
@@ -1,4 +1,4 @@
-/*	SCCS Id: @(#)worn.c	3.5	2005/11/27	*/
+/*	SCCS Id: @(#)worn.c	3.5	2007/02/22	*/
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /* NetHack may be freely redistributed.  See license for details. */
 
@@ -246,7 +246,10 @@ struct obj *obj;	/* item to make known if effect can be seen */
     else
 	mon->mspeed = mon->permspeed;
 
-    if (give_msg && (mon->mspeed != oldspeed || petrify) && canseemon(mon)) {
+    /* no message if monster is immobile (temp or perm) or unseen */
+    if (give_msg && (mon->mspeed != oldspeed || petrify) &&
+	    mon->data->mmove && !(mon->mfrozen || mon->msleeping) &&
+	    canseemon(mon)) {
 	/* fast to slow (skipping intermediate state) or vice versa */
 	const char *howmuch = (mon->mspeed + oldspeed == MFAST + MSLOW) ?
 				"much " : "";
@@ -260,11 +263,8 @@ struct obj *obj;	/* item to make known if effect can be seen */
 	else
 	    pline("%s seems to be moving %sslower.", Monnam(mon), howmuch);
 
-	/* might discover an object if we see the speed change happen, but
-	   avoid making possibly forgotten book known when casting its spell */
-	if (obj != 0 && obj->dknown &&
-		objects[obj->otyp].oc_class != SPBOOK_CLASS)
-	    makeknown(obj->otyp);
+	/* might discover an object if we see the speed change happen */
+	if (obj != 0) learnwand(obj);
     }
 }