diff --git a/font-patcher b/font-patcher
index 2ee80257ff..75dc958976 100755
--- a/font-patcher
+++ b/font-patcher
@@ -814,11 +814,11 @@ class font_patcher:
 
         box_enabled = self.source_monospaced and not self.symbolsonly # Box glyph only for monospaced and not for Symbols Only
         box_keep = False
-        if box_enabled:
+        if box_enabled or self.args.forcebox:
             self.sourceFont.selection.select(("ranges",), 0x2500, 0x259f)
             box_glyphs_target = len(list(self.sourceFont.selection))
             box_glyphs_current = len(list(self.sourceFont.selection.byGlyphs))
-            if box_glyphs_target > box_glyphs_current:
+            if box_glyphs_target > box_glyphs_current or self.args.forcebox:
                 # Sourcefont does not have all of these glyphs, do not mix sets (overwrite existing)
                 if box_glyphs_current > 0:
                     logger.debug("%d/%d box drawing glyphs will be replaced",
@@ -1890,14 +1890,15 @@ def setup_arguments():
     parser.set_defaults(progressbars=True)
     parser.add_argument('--debug',                                   dest='debugmode',        default=0,     type=int, nargs='?', help='Verbose mode (optional: 1=just to file; 2*=just to terminal; 3=display and file)', const=2, choices=range(0, 3 + 1))
     parser.add_argument('--dry',                                     dest='dry_run',          default=False, action='store_true', help='Do neither patch nor store the font, to check naming')
+    parser.add_argument('--boxdrawing',                              dest='forcebox',         default=False, action='store_true', help='Force patching in (over existing) box drawing glyphs')
+    parser.add_argument('--metrics',                                 dest='metrics',          default=None, choices=get_metrics_names(), help='Select vertical metrics source (for problematic cases)')
+    parser.add_argument('--name',                                    dest='force_name',       default=None, type=str,             help='Specify naming source (\'full\', \'postscript\', or concrete free name-string)')
     parser.add_argument('--xavgcharwidth',                           dest='xavgwidth',        default=None,  type=int, nargs='?', help='Adjust xAvgCharWidth (optional: concrete value)', const=True)
     # --xavgcharwidth for compatibility with old applications like notepad and non-latin fonts
     # Possible values with examples:
     # <none>  - copy from sourcefont (default)
     # 0       - calculate from font according to OS/2-version-2
     # 500     - set to 500
-    parser.add_argument('--metrics',                                 dest='metrics',          default=None, choices=get_metrics_names(), help='Select vertical metrics source (for problematic cases)')
-    parser.add_argument('--name',                                    dest='force_name',       default=None, type=str,             help='Specify naming source (\'full\', \'postscript\', or concrete free name-string)')
 
     # symbol fonts to include arguments
     sym_font_group = parser.add_argument_group('Symbol Fonts')