diff --git a/net/sixlowpan/Kconfig b/net/sixlowpan/Kconfig
index cf08eadaf3..0a363597bf 100644
--- a/net/sixlowpan/Kconfig
+++ b/net/sixlowpan/Kconfig
@@ -12,6 +12,15 @@ config NET_6LOWPAN_FRAG
 		CONFIG_NET_6LOWPAN_FRAG specifies if 6lowpan fragmentation should be
 		used or not. Fragmentation is on by default.
 
+config NET_6LOWPAN_FRAMELEN
+	int "Max Radio Frame Size"
+	default 127
+	range 1 999999
+	---help---
+		Wireless devices use a variety of frame sizes.  For IEEE 802.15.4
+		radios, this should be 127 bytes.  However, some IEEE 802.15.4
+		radios may support non-standard frame lengths.
+
 choice
 	prompt "6LoWPAN Compression"
 	default NET_6LOWPAN_COMPRESSION_HC06