Index: src/plug_io.h
===================================================================
--- src/plug_io.h	(revision 2640)
+++ src/plug_io.h	(revision 2641)
@@ -72,6 +72,8 @@
 	/* Writes PCB to a file. Return 0 on success. */
 	int (*write_pcb)(plug_io_t *ctx, FILE *f);
 
+	const char *default_fmt;
+	const char *description;
 };
 extern plug_io_t *plug_io_chain;
 
Index: src_plugins/io_kicad_legacy/io_kicad_legacy.c
===================================================================
--- src_plugins/io_kicad_legacy/io_kicad_legacy.c	(revision 2640)
+++ src_plugins/io_kicad_legacy/io_kicad_legacy.c	(revision 2641)
@@ -57,6 +57,9 @@
 	io_kicad_legacy.write_buffer = io_kicad_legacy_write_buffer;
 	io_kicad_legacy.write_element = io_kicad_legacy_write_element;
 	io_kicad_legacy.write_pcb = io_kicad_legacy_write_pcb;
+	io_kicad_legacy.default_fmt = "kicadl";
+	io_kicad_legacy.description = "Kicad, legacy format";
+
 	HOOK_REGISTER(plug_io_t, plug_io_chain, &io_kicad_legacy);
 
 	/* TODO: Alloc plugin-globals here. */
Index: src_plugins/io_pcb/io_pcb.c
===================================================================
--- src_plugins/io_pcb/io_pcb.c	(revision 2640)
+++ src_plugins/io_pcb/io_pcb.c	(revision 2641)
@@ -58,6 +58,9 @@
 	io_pcb.write_buffer = io_pcb_WriteBuffer;
 	io_pcb.write_element = io_pcb_WriteElementData;
 	io_pcb.write_pcb = io_pcb_WritePCB;
+	io_pcb.default_fmt = "pcb";
+	io_pcb.description = "geda/pcb";
+
 	HOOK_REGISTER(plug_io_t, plug_io_chain, &io_pcb);
 
 	return hid_io_pcb_uninit;