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diff --git a/README b/README
index 5ce287f..05b6eee 100644
--- a/README
+++ b/README
@@ -32,6 +32,9 @@ processes under SMP.
   instead of parsing /proc/net/tcp to minimize overhead.
   This was fun to discover and write.
 
+Users of older Linux kernels need to ensure that the the "inet_diag"
+and "tcp_diag" kernel modules are loaded as they do not autoload correctly
+
 == Install
 
 We recommend GCC 4+ (or compatible) to support the