diff --git a/cef.cabal b/cef.cabal
--- a/cef.cabal
+++ b/cef.cabal
@@ -1,5 +1,5 @@
 name:                cef
-version:             0.1.1
+version:             0.1.2
 synopsis:            CEF log format
 description:         This library is used to produce CEF log lines
 homepage:            http://github.com/picussecurity/haskell-cef.git
diff --git a/src/System/Log/CEF.hs b/src/System/Log/CEF.hs
--- a/src/System/Log/CEF.hs
+++ b/src/System/Log/CEF.hs
@@ -12,6 +12,8 @@
   , log
   -- * Extensions
   , module System.Log.CEF.Extensions
+  -- * Re-exports
+  , (<>)
   ) where
 
 --------------------------------------------------------------------------------
@@ -45,7 +47,7 @@
 -- >>> :set -XOverloadedStrings
 -- >>> let exampleEvent = CEFEvent "Acme Corp" "Acmetorazor" "2.1" "cool" "MyNameIsCool" 10 (applicationProtocol "PUT")
 -- >>> toLazyByteString $ log exampleEvent
--- "CEF:0|Acme Corp|Acmetorazor|2.1|MyNameIsCool|10|app=PUT\n"
+-- "CEF:0|Acme Corp|Acmetorazor|2.1|cool|MyNameIsCool|10|app=PUT\n"
 log :: CEFEvent -> Builder
 log CEFEvent{..} = mconcat (intersperse sep fields) <> "\n"
   where sep = "|"
@@ -53,6 +55,7 @@
                  , renderHeader deviceVendor
                  , renderHeader deviceProduct
                  , renderHeader deviceVersion
+                 , renderHeader signatureId
                  , renderHeader name
                  , intDec severity
                  , extensionsBuilder extensions