diff --git a/src/detect.c b/src/detect.c
index ee25935f4..c149cac69 100644
--- a/src/detect.c
+++ b/src/detect.c
@@ -637,7 +637,8 @@ int mclass;                /* monster class, 0 for all */
                         show_glyph(mtmp->mx, mtmp->my,
                                    detected_mon_to_glyph(mtmp));
                     else
-                        show_glyph(mtmp->mx, mtmp->my, mon_to_glyph(mtmp));
+                        show_glyph(mtmp->mx, mtmp->my,
+                                   mtmp->mtame ? pet_to_glyph(mtmp) : mon_to_glyph(mtmp));
                     /* don't be stingy - display entire worm */
                     if (mtmp->data == &mons[PM_LONG_WORM])
                         detect_wsegs(mtmp, 0);
diff --git a/src/worm.c b/src/worm.c
index c4ad029fc..cb3dc4922 100644
--- a/src/worm.c
+++ b/src/worm.c
@@ -465,8 +465,10 @@ boolean use_detection_glyph;
 
     while (curr != wheads[worm->wormno]) {
         num = use_detection_glyph
-                  ? detected_monnum_to_glyph(what_mon(PM_LONG_WORM_TAIL))
-                  : monnum_to_glyph(what_mon(PM_LONG_WORM_TAIL));
+            ? detected_monnum_to_glyph(what_mon(PM_LONG_WORM_TAIL))
+            : (worm->mtame
+               ? petnum_to_glyph(what_mon(PM_LONG_WORM_TAIL))
+               : monnum_to_glyph(what_mon(PM_LONG_WORM_TAIL)));
         show_glyph(curr->wx, curr->wy, num);
         curr = curr->nseg;
     }