diff --git a/guide/english/network-engineering/data-frames/index.md b/guide/english/network-engineering/data-frames/index.md
index b3ba0366ad..aad4180bdf 100644
--- a/guide/english/network-engineering/data-frames/index.md
+++ b/guide/english/network-engineering/data-frames/index.md
@@ -9,7 +9,7 @@ Frames are divided into control information and data (also called the 'payload')
 
 ![A frame in data link layer](http://www.highteck.net/images/156-Datalink-PDU.jpg)
 
-The Data Frame header contains protocol specific information but all headers include the protocol being used and source/destination MAC addresses. Common Layer 2 protocols include Ethernet and Point-to-Point Protocol (PPP). Data Frame trailers typically contain a Frame Check Sequence (FCS) that allows the receiving device to verify the integrity of the received frame.
+The Data Frame header contains protocol specific information but all headers include the protocol being used and source/destination MAC addresses. Common Layer 2 protocols include Ethernet (IEEE 802.3), WiFi (IEEE 802.11), and Point-to-Point Protocol (PPP). Data Frame trailers typically contain a Frame Check Sequence (FCS) that allows the receiving device to verify the integrity of the received frame.
 
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