diff --git a/Frequently-Asked-Questions.md b/Frequently-Asked-Questions.md
index ef76bcf..9d92a5d 100644
--- a/Frequently-Asked-Questions.md
+++ b/Frequently-Asked-Questions.md
@@ -58,5 +58,5 @@ VpnCloud has a fixed 8-byte header. If encryption is used, another 12-byte heade
 So the total overhead is:
 - 50 bytes if unencrypted and IPv4
 - minus 14 bytes for TUN devices
-- plus 12 bytes for encryption
+- plus 28 bytes for encryption
 - plus 20 bytes for IPv6