diff --git a/sys/sys/gpt.h b/sys/sys/gpt.h
index 7d92dee37bd..0c5fb061c79 100644
--- a/sys/sys/gpt.h
+++ b/sys/sys/gpt.h
@@ -82,6 +82,8 @@ struct gpt_ent {
 	{0x516e7cb6,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
 #define	GPT_ENT_TYPE_FREEBSD_VINUM	\
 	{0x516e7cb8,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
+#define	GPT_ENT_TYPE_FREEBSD_ZFS	\
+	{0x516e7cba,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
 
 /*
  * The following are unused but documented here to avoid reuse.