diff --git a/src/sys/boot/boot2/boot1.s b/src/sys/boot/boot2/boot1.s
index 2daec05..4e23bfc 100755
--- a/src/sys/boot/boot2/boot1.s
+++ b/src/sys/boot/boot2/boot1.s
@@ -26,7 +26,7 @@
 # Partition Constants 
 		.set PRT_OFF,0x1be		# Partition offset
 		.set PRT_NUM,0x4		# Partitions
-		.set PRT_UFS,0x2A		# Partition type
+		.set PRT_UBX,0x2A		# Partition type
 
 # Flag Bits
 		.set FL_PACKET,0x80		# Packet mode
@@ -143,7 +143,7 @@
 		mov $0x1,%cx	 		# Two passes
 main.1: 	mov $MEM_BUF+PRT_OFF,%si	# Partition table
 		movb $0x1,%dh			# Partition
-main.2: 	cmpb $PRT_UFS,0x4(%si)		# Our partition type?
+main.2: 	cmpb $PRT_UBX,0x4(%si)		# Our partition type?
 		jne main.3			# No
 		jcxz main.5			# If second pass
 		testb $0x80,(%si)		# Active?