diff --git a/doc/fixes34.1 b/doc/fixes34.1
index 117d607e9..15fcad188 100644
--- a/doc/fixes34.1
+++ b/doc/fixes34.1
@@ -139,6 +139,7 @@ dropping gold on an altar printed no message and didn't change gnostic conduct
 don't allow cursed daggers thrown by monsters to go thru closed doors
 hero polymorphed into an exploding monster should explode when attacking
 	thin air, just like the monster itself
+don't mark holes/trapdoors as seen if you levitate over them while blind
 
 
 Platform- and/or Interface-Specific Fixes
diff --git a/src/trap.c b/src/trap.c
index eafc20303..36e13349b 100644
--- a/src/trap.c
+++ b/src/trap.c
@@ -331,6 +331,7 @@ boolean td;	/* td == TRUE : trap door or hole */
 
 	if(td) {
 	    struct trap *t=t_at(u.ux,u.uy);
+	    seetrap(t);
 	    if (!In_sokoban(&u.uz)) {
 		if (t->ttyp == TRAPDOOR)
 			pline("A trap door opens up under you!");
@@ -823,8 +824,8 @@ glovecheck:		(void) rust_dmg(uarmg, "gauntlets", 1, TRUE, &youmonst);
 		break;
 	    case HOLE:
 	    case TRAPDOOR:
-		seetrap(trap);
 		if (!Can_fall_thru(&u.uz)) {
+		    seetrap(trap);	/* normally done in fall_through */
 		    impossible("dotrap: %ss cannot exist on this level.",
 			       defsyms[trap_to_defsym(ttype)].explanation);
 		    break;		/* don't activate it after all */