diff --git a/sys/geom/part/g_part_gpt.c b/sys/geom/part/g_part_gpt.c
--- a/sys/geom/part/g_part_gpt.c
+++ b/sys/geom/part/g_part_gpt.c
@@ -734,6 +734,15 @@
 	return (0);
 }
 
+static void
+g_part_gpt_efimedia(struct g_part_gpt_entry *entry, struct sbuf *sb)
+{
+	sbuf_printf(sb, "HD(%d,GPT,", entry->base.gpe_index);
+	sbuf_printf_uuid(sb, &entry->ent.ent_uuid);
+	sbuf_printf(sb, ",%#jx,%#jx)", (intmax_t)entry->base.gpe_start,
+	    (intmax_t)(entry->base.gpe_end - entry->base.gpe_start + 1));
+}
+
 static void
 g_part_gpt_dumpconf(struct g_part_table *table, struct g_part_entry *baseentry,
     struct sbuf *sb, const char *indent)
@@ -768,10 +777,7 @@
 		sbuf_printf_uuid(sb, &entry->ent.ent_uuid);
 		sbuf_cat(sb, "</rawuuid>\n");
 		sbuf_printf(sb, "%s<efimedia>", indent);
-		sbuf_printf(sb, "HD(%d,GPT,", entry->base.gpe_index);
-		sbuf_printf_uuid(sb, &entry->ent.ent_uuid);
-		sbuf_printf(sb, ",%#jx,%#jx)", (intmax_t)entry->base.gpe_start,
-		    (intmax_t)(entry->base.gpe_end - entry->base.gpe_start + 1));
+		g_part_gpt_efimedia(entry, sb);
 		sbuf_cat(sb, "</efimedia>\n");
 	} else {
 		/* confxml: scheme information */