diff --git a/src/bones.c b/src/bones.c
index 963c6d8f9..98fb9fd97 100644
--- a/src/bones.c
+++ b/src/bones.c
@@ -105,6 +105,7 @@ resetobjs(struct obj *ochain, boolean restore)
             otmp->rknown = 0;
             otmp->lknown = 0;
             otmp->cknown = 0;
+            otmp->tknown = 0;
             otmp->invlet = 0;
             otmp->no_charge = 0;
             otmp->how_lost = LOST_NONE;