diff --git a/cmdopt2/args.hpp b/cmdopt2/args.hpp
index c9fa76ef..bf02fe26 100644
--- a/cmdopt2/args.hpp
+++ b/cmdopt2/args.hpp
@@ -24,7 +24,7 @@ namespace cruft::cmdopt2 {
         std::optional<std::string> description;
         bool required_ = false;
 
-        using acceptor1_t = std::function<void(std::string_view)>;
+        using acceptor1_t = std::function<void(char const *)>;
         std::optional<acceptor1_t> acceptor1;
     };
 
@@ -44,9 +44,9 @@ namespace cruft::cmdopt2 {
         {
             CHECK (!acceptor1);
             if constexpr (parseable<ValueT>) {
-                acceptor1 = [&ref] (std::string_view str) { ref = str; };
+                acceptor1 = [&ref] (char const* str) { ref = parse::from_string<ValueT> (str); };
             } else {
-                acceptor1 = [&ref] (std::string_view str) { ref = parse::from_string<ValueT> (str); };
+                acceptor1 = [&ref] (char const* str) { ref = str; };
             }
             return get ();
         }
@@ -58,9 +58,9 @@ namespace cruft::cmdopt2 {
             CHECK (!acceptor1);
 
             if constexpr (parseable<ValueT>) {
-                acceptor1 = [&ref] (std::string_view str) { ref = str; };
+                acceptor1 = [&ref] (char const* str) { ref = parse::from_string<ValueT> (str); };
             } else {
-                acceptor1 = [&ref] (std::string_view str) { ref = parse::from_string<ValueT> (str); };
+                acceptor1 = [&ref] (char const* str) { ref = str; };
             }
 
             return get ();