diff --git a/win/win32/mhmap.c b/win/win32/mhmap.c
index 390185674..263e33bd4 100644
--- a/win/win32/mhmap.c
+++ b/win/win32/mhmap.c
@@ -989,7 +989,8 @@ paintGlyph(PNHMapWindow data, int i, int j, RECT * rect)
                 rgbcolor = nhcolor_to_RGB(color);
             }
         }
-        if (((data->map[i][j].gm.glyphflags & MG_PET) && iflags.hilite_pet)
+        if ((((data->map[i][j].gm.glyphflags & MG_PET) && iflags.hilite_pet)
+             || ((data->map[i][j].gm.glyphflags & MG_OBJPILE) && iflags.hilite_pile))
             || ((data->map[i][j].gm.glyphflags & (MG_DETECT | MG_BW_LAVA
                                                   | MG_BW_ICE | MG_BW_SINK
                                                   | MG_BW_ENGR)) != 0)) {
diff --git a/win/win32/mswproc.c b/win/win32/mswproc.c
index 09c8cb4ad..976b8d765 100644
--- a/win/win32/mswproc.c
+++ b/win/win32/mswproc.c
@@ -2072,6 +2072,11 @@ mswin_preference_update(const char *pref)
         return;
     }
 
+    if (stricmp(pref, "hilite_pile") == 0) {
+        InvalidateRect(mswin_hwnd_from_winid(WIN_MAP), NULL, TRUE);
+        return;
+    }
+
     if (stricmp(pref, "align_message") == 0
         || stricmp(pref, "align_status") == 0) {
         mswin_layout_main_window(NULL);