diff --git a/libs/ardour/ardour/export_format_base.h b/libs/ardour/ardour/export_format_base.h
index b147f6c379..517b3d1ff0 100644
--- a/libs/ardour/ardour/export_format_base.h
+++ b/libs/ardour/ardour/export_format_base.h
@@ -59,6 +59,7 @@ class LIBARDOUR_API ExportFormatBase {
 		F_RAW = SF_FORMAT_RAW,
 		F_FLAC = SF_FORMAT_FLAC,
 		F_Ogg = SF_FORMAT_OGG,
+		F_MPEG = 0x230000,  /* hardcode SF_FORMAT_MPEG from libsndfile 1.1.0+ */
 		F_FFMPEG = 0xF10000
 	};
 
@@ -78,7 +79,8 @@ class LIBARDOUR_API ExportFormatBase {
 		SF_U8 = SF_FORMAT_PCM_U8,
 		SF_Float = SF_FORMAT_FLOAT,
 		SF_Double = SF_FORMAT_DOUBLE,
-		SF_Vorbis = SF_FORMAT_VORBIS
+		SF_Vorbis = SF_FORMAT_VORBIS,
+		SF_MPEG_LAYER_III = 0x0082  /* SF_FORMAT_MPEG_LAYER_III */
 	};
 
 	enum DitherType {
diff --git a/libs/ardour/enums.cc b/libs/ardour/enums.cc
index 414583a562..eda53fada6 100644
--- a/libs/ardour/enums.cc
+++ b/libs/ardour/enums.cc
@@ -634,6 +634,7 @@ setup_enum_writer ()
 	REGISTER_CLASS_ENUM (ExportFormatBase, F_Ogg);
 	REGISTER_CLASS_ENUM (ExportFormatBase, F_CAF);
 	REGISTER_CLASS_ENUM (ExportFormatBase, F_FFMPEG);
+	REGISTER_CLASS_ENUM (ExportFormatBase, F_MPEG);
 	REGISTER (_ExportFormatBase_FormatId);
 
 	REGISTER_CLASS_ENUM (ExportFormatBase, E_FileDefault);
@@ -651,6 +652,7 @@ setup_enum_writer ()
 	REGISTER_CLASS_ENUM (ExportFormatBase, SF_Float);
 	REGISTER_CLASS_ENUM (ExportFormatBase, SF_Double);
 	REGISTER_CLASS_ENUM (ExportFormatBase, SF_Vorbis);
+	REGISTER_CLASS_ENUM (ExportFormatBase, SF_MPEG_LAYER_III);
 	REGISTER (_ExportFormatBase_SampleFormat);
 
 	REGISTER_CLASS_ENUM (ExportFormatBase, D_None);
diff --git a/libs/ardour/export_formats.cc b/libs/ardour/export_formats.cc
index 3b6ccd5291..6b6fe09e86 100644
--- a/libs/ardour/export_formats.cc
+++ b/libs/ardour/export_formats.cc
@@ -179,6 +179,8 @@ HasSampleFormat::get_sample_format_name (ExportFormatBase::SampleFormat format)
 		return _("8-bit unsigned");
 	  case ExportFormatBase::SF_Vorbis:
 		return _("Vorbis sample format");
+	  case ExportFormatBase::SF_MPEG_LAYER_III:
+		return _("MPEG-2 Audio Layer III");
 	  case ExportFormatBase::SF_None:
 		return _("No sample format");
 	}