diff --git a/libs/midi++2/midi++/midnam_patch.h b/libs/midi++2/midi++/midnam_patch.h
index be409bcf8e..d67543429a 100644
--- a/libs/midi++2/midi++/midnam_patch.h
+++ b/libs/midi++2/midi++/midnam_patch.h
@@ -425,7 +425,7 @@ private:
 	MasterDeviceNames::Models     _all_models;
 };
 
-extern const char* general_midi_program_names[128]; /* 0 .. 127 */
+LIBMIDIPP_API extern const char* general_midi_program_names[128]; /* 0 .. 127 */
 
 }
 
diff --git a/libs/midi++2/wscript b/libs/midi++2/wscript
index c950d13192..e27c4876ee 100644
--- a/libs/midi++2/wscript
+++ b/libs/midi++2/wscript
@@ -64,6 +64,8 @@ def build(bld):
         obj              = bld.shlib(features = 'cxx cxxshlib', source=libmidi_sources)
         obj.defines      = [ 'LIBMIDIPP_DLL=1', 'LIBMIDIPP_DLL_EXPORTS=1' ]
         obj.defines     += [ 'LIBPBD_DLL=1', 'LIBEVORAL_DLL=1' ]
+        obj.cxxflags     = [ '-fvisibility=hidden' ]
+        obj.cflags       = [ '-fvisibility=hidden' ]
     else:
         obj              = bld.stlib(features = 'cxx cxxstlib', source=libmidi_sources)
         obj.cxxflags     = [ '-fPIC', '-DWITH_JACK_MIDI' ]