diff --git a/net/arp/Make.defs b/net/arp/Make.defs
index 2709b1256ba..bb79eb34d45 100644
--- a/net/arp/Make.defs
+++ b/net/arp/Make.defs
@@ -33,9 +33,6 @@
 #
 ############################################################################
 
-NET_ASRCS =
-NET_CSRCS =
-
 ifeq ($(CONFIG_NET),y)
 
 # ARP supported is not provided for SLIP (Ethernet only)