diff --git a/cmdopt2/parser.cpp b/cmdopt2/parser.cpp
index b9387d7c..b2fffd2b 100644
--- a/cmdopt2/parser.cpp
+++ b/cmdopt2/parser.cpp
@@ -211,15 +211,24 @@ usage (
     for (auto const &arg: keyword) {
         auto const &delimiters = arg.required ? REQUIRED : OPTIONAL;
 
-        if (arg.short_)
-            fmt::print (output, " {}-{}{}", delimiters[0], '-', *arg.short_, delimiters[1]);
-        if (arg.long_)
-            fmt::print (output, " {}--{}{}", delimiters[0], "--", *arg.long_, delimiters[1]);
+        if (arg.short_) {
+            fmt::print (output, FMT_STRING (" {}-{}"), delimiters[0], *arg.short_);
+            if (arg.acceptor1)
+                fmt::print (output, FMT_STRING (" <{}>"), arg.name);
+            fmt::print (output, FMT_STRING ("{}"), delimiters[1]);
+        }
+
+        if (arg.long_) {
+            fmt::print (output, FMT_STRING (" {}--{}"), delimiters[0], *arg.long_);
+            if (arg.acceptor1)
+                fmt::print (output, FMT_STRING (" <{}>"), arg.name);
+            fmt::print (output, FMT_STRING ("{}"), delimiters[1]);
+        }
     }
 
     for (auto const &arg: positional) {
         auto const &delimiters = arg.required ? REQUIRED : OPTIONAL;
-        fmt::print (output, " {}{}{}", delimiters[0], arg.name, delimiters[1]);
+        fmt::print (output, FMT_STRING (" {}{}{}"), delimiters[0], arg.name, delimiters[1]);
     }
 
     fmt::print (output, "\n");