diff --git a/output/dwarf.h b/output/dwarf.h
index 4d6ea1e7..e672819c 100644
--- a/output/dwarf.h
+++ b/output/dwarf.h
@@ -544,6 +544,7 @@ enum dwarf_line_number_extended {
 	DW_LNE_end_sequence	= 0x01,
 	DW_LNE_set_address	= 0x02,
 	DW_LNE_define_file	= 0x03,
+	DW_LNE_set_discriminator= 0x04,
 	DW_LNE_lo_user		= 0x80,
 	DW_LNE_hi_user		= 0xff
 };