=== modified file 'common/pgm_base.cpp'
--- common/pgm_base.cpp	2015-02-18 19:27:00 +0000
+++ common/pgm_base.cpp	2015-02-21 18:20:18 +0000
@@ -37,6 +37,7 @@
 #include <wx/filename.h>
 #include <wx/snglinst.h>
 #include <wx/stdpaths.h>
+#include <wx/sysopt.h>
 
 #include <pgm_base.h>
 #include <wxstruct.h>
@@ -426,6 +427,11 @@
     // Set locale option for separator used in float numbers
     SetLocaleTo_Default();
 
+#ifdef __WXMAC__
+    // Always show filters on Open dialog to be able to choose plugin
+    wxSystemOptions::SetOption(wxOSX_FILEDIALOG_ALWAYS_SHOW_TYPES, 1);
+#endif
+
     return true;
 }