diff --git a/src/sfizz.hpp b/src/sfizz.hpp
index f06e1867..7b5a250a 100644
--- a/src/sfizz.hpp
+++ b/src/sfizz.hpp
@@ -242,16 +242,6 @@ public:
      */
     int getNumCurves() const noexcept;
 
-    /**
-     * @brief Export a MIDI Name document describing the currently loaded SFZ file.
-     * @since 0.3.1
-     *
-     * @param model  The model name used if a non-empty string, otherwise generated.
-     *
-     * @return A newly allocated XML string, which must be freed after use.
-     */
-    std::string exportMidnam(const std::string& model) const noexcept;
-
     /**
      * @brief Return a list of unsupported opcodes, if any.
      * @since 0.2.0
@@ -990,7 +980,7 @@ public:
      *
      * @return A XML string.
      */
-    std::string exportMidnam(const char* model);
+    std::string exportMidnam(const std::string& model) const;
 
     /**
      * @addtogroup Messaging
diff --git a/src/sfizz/sfizz.cpp b/src/sfizz/sfizz.cpp
index d4e301ae..5260caf7 100644
--- a/src/sfizz/sfizz.cpp
+++ b/src/sfizz/sfizz.cpp
@@ -110,11 +110,6 @@ int sfz::Sfizz::getNumCurves() const noexcept
     return synth->synth.getNumCurves();
 }
 
-std::string sfz::Sfizz::exportMidnam(const std::string& model) const noexcept
-{
-    return synth->synth.exportMidnam(model);
-}
-
 const std::vector<std::string>& sfz::Sfizz::getUnknownOpcodes() const noexcept
 {
     return synth->synth.getUnknownOpcodes();
@@ -366,7 +361,7 @@ void sfz::Sfizz::clearExternalDefinitions()
     synth->synth.getParser().clearExternalDefinitions();
 }
 
-std::string sfz::Sfizz::exportMidnam(const char* model)
+std::string sfz::Sfizz::exportMidnam(const std::string& model) const
 {
     return synth->synth.exportMidnam(model);
 }