diff --git a/lib/libefi/rdwr_efi.c b/lib/libefi/rdwr_efi.c
index 474f78a38bc0..80886bb44f6d 100644
--- a/lib/libefi/rdwr_efi.c
+++ b/lib/libefi/rdwr_efi.c
@@ -87,7 +87,7 @@ struct dk_map2  default_vtoc_map[NDKMAP] = {
 
 #if defined(_SUNOS_VTOC_16)
 
-#if defined(i386) || defined(__amd64) || defined(__arm)
+#if defined(i386) || defined(__amd64) || defined(__arm) || defined(__powerpc)
 	{	V_BOOT,		V_UNMNT	},		/* i - 8 */
 	{	V_ALTSCTR,	0	},		/* j - 9 */