diff --git a/etc/system.conf b/etc/system.conf
index a2d6bc006..d89a6d3df 100644
--- a/etc/system.conf
+++ b/etc/system.conf
@@ -168,7 +168,6 @@ service tty
 		VIRCOPY		# 15
 		PHYSCOPY	# 16
 		IRQCTL		# 19
-		INT86		# 20
 		DEVIO		# 21
 		SDEVIO		# 22
 		VDEVIO		# 23
@@ -194,7 +193,6 @@ service memory
 		VIRCOPY		# 15
 		PHYSCOPY	# 16
 		IRQCTL		# 19
-		INT86		# 20
 		DEVIO		# 21
 		SDEVIO		# 22
 		VDEVIO		# 23