diff --git a/Jamfile b/Jamfile
index 73e3a8a82f..4ea8991b4c 100644
--- a/Jamfile
+++ b/Jamfile
@@ -19,6 +19,7 @@ Depends NetworkingKit :
 	sis900 rtl8139
 	
 	# PPP devices:
+	modem
 	pppoe
 	# PPP protocols:
 	ipcp