diff --git a/suricata.yaml.in b/suricata.yaml.in
index fa0fb9a00f..56d4d3628f 100644
--- a/suricata.yaml.in
+++ b/suricata.yaml.in
@@ -906,6 +906,15 @@ host:
   prealloc: 1000
   memcap: 16777216
 
+# IP Pair table:
+#
+# Used by xbits 'ippair' tracking.
+#
+#ippair:
+#  hash-size: 4096
+#  prealloc: 1000
+#  memcap: 16777216
+
 # Logging configuration.  This is not about logging IDS alerts, but
 # IDS output about what its doing, errors, etc.
 logging: