diff --git a/suricata.yaml.in b/suricata.yaml.in
index 0b9733f8f1..610f17a950 100644
--- a/suricata.yaml.in
+++ b/suricata.yaml.in
@@ -1362,7 +1362,7 @@ flow-timeouts:
 #                               # of checksum. You can control the handling of checksum
 #                               # on a per-interface basis via the 'checksum-checks'
 #                               # option
-#   prealloc-sessions: 2k       # 2k sessions prealloc'd per stream thread
+#   prealloc-sessions: 2048     # 2k sessions prealloc'd per stream thread
 #   midstream: false            # don't allow midstream session pickups
 #   async-oneside: false        # don't enable async stream handling
 #   inline: no                  # stream inline mode