diff --git a/src/click/parser.py b/src/click/parser.py
index 1ea1f7166e..713c4a2c77 100644
--- a/src/click/parser.py
+++ b/src/click/parser.py
@@ -401,7 +401,9 @@ def _match_short_opt(self, arg: str, state: _ParsingState) -> None:
                 if self.ignore_unknown_options:
                     unknown_options.append(ch)
                     continue
-                raise NoSuchOption(opt, ctx=self.ctx)
+                raise NoSuchOption(
+                    _normalize_opt(arg, self.ctx), ctx=self.ctx
+                )  # Fix #2779
             if option.takes_value:
                 # Any characters left in arg?  Pretend they're the
                 # next arg, and stop consuming characters of arg.