diff --git a/dhcp/dhcp.go b/dhcp/dhcp.go
index cb9113d..445f8f2 100644
--- a/dhcp/dhcp.go
+++ b/dhcp/dhcp.go
@@ -283,6 +283,7 @@ func Unmarshal(bs []byte) (*Packet, error) {
 		return nil, errors.New("packet has no DHCP Message Type")
 	}
 	ret.Type = MessageType(typ)
+	delete(ret.Options, 53)
 	switch ret.Type {
 	case MsgDiscover, MsgRequest, MsgDecline, MsgRelease, MsgInform:
 		if bs[0] != 1 {
diff --git a/dhcp/testdata/dhcp.parsed b/dhcp/testdata/dhcp.parsed
index 9f84201..9a22db9 100644
--- a/dhcp/testdata/dhcp.parsed
+++ b/dhcp/testdata/dhcp.parsed
@@ -11,7 +11,6 @@ DHCPDISCOVER
   BootFilename: 
 
   Options:
-    53: []byte{0x1}
     55: []byte{0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xb, 0xc, 0xd, 0xf, 0x10, 0x11, 0x12, 0x16, 0x17, 0x1c, 0x28, 0x29, 0x2a, 0x2b, 0x32, 0x33, 0x36, 0x3a, 0x3b, 0x3c, 0x42, 0x43, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87}
     57: []byte{0x4, 0xec}
     60: []byte{0x50, 0x58, 0x45, 0x43, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x3a, 0x41, 0x72, 0x63, 0x68, 0x3a, 0x30, 0x30, 0x30, 0x30, 0x30, 0x3a, 0x55, 0x4e, 0x44, 0x49, 0x3a, 0x30, 0x30, 0x32, 0x30, 0x30, 0x31}
@@ -33,7 +32,6 @@ DHCPOFFER
 
   Options:
     43: []byte{0x6, 0x1, 0x3, 0x8, 0x7, 0x80, 0x0, 0x1, 0xc0, 0xa8, 0x10, 0xa, 0x9, 0xc, 0x80, 0x0, 0x9, 0x50, 0x69, 0x78, 0x69, 0x65, 0x63, 0x6f, 0x72, 0x65, 0xa, 0xa, 0x0, 0x50, 0x69, 0x78, 0x69, 0x65, 0x63, 0x6f, 0x72, 0x65, 0xff}
-    53: []byte{0x2}
     54: []byte{0xc0, 0xa8, 0x10, 0xa}
     60: []byte{0x50, 0x58, 0x45, 0x43, 0x6c, 0x69, 0x65, 0x6e, 0x74}
     97: []byte{0x0, 0x0, 0x2, 0x0, 0x3, 0x0, 0x4, 0x0, 0x5, 0x0, 0x6, 0x0, 0x7, 0x0, 0x8, 0x0, 0x9}
@@ -58,7 +56,6 @@ DHCPOFFER
     15: []byte{0x68, 0x6f, 0x6d, 0x65, 0x2e, 0x75, 0x6e, 0x69, 0x76, 0x65, 0x72, 0x73, 0x65, 0x2e, 0x74, 0x66}
     28: []byte{0xc0, 0xa8, 0x10, 0xff}
     51: []byte{0x0, 0x0, 0xe, 0x10}
-    53: []byte{0x2}
     54: []byte{0xc0, 0xa8, 0x10, 0x1}
     58: []byte{0x0, 0x0, 0x7, 0x8}
     59: []byte{0x0, 0x0, 0xc, 0x4e}