doc: small typo under '4.3.1.5' section

diff --git a/doc/userguide/rules/header-keywords.rst b/doc/userguide/rules/header-keywords.rst
index de386e276e94f5aa2c7c61976cf1cf125c10b5d4..89fac2509e88781719e3db5e096dd12b4235c1cc 100644 (file)
--- a/doc/userguide/rules/header-keywords.rst
+++ b/doc/userguide/rules/header-keywords.rst
@@ -97,7 +97,7 @@ Id
 
 With the id keyword, you can match on a specific IP ID value.  The ID
 identifies each packet sent by a host and increments usually with one
-with each packet that is being send.  The IP ID is uses as a fragment
+with each packet that is being send.  The IP ID is used as a fragment
 identification number. Each packet has an IP ID, and when the packet
 becomes fragmented, all fragments of this packet have the same ID. In
 this way, the receiver of the packet knows which fragments belong to