diff --git a/packages/OS400/curl.inc.in b/packages/OS400/curl.inc.in
index 8dd88c108116e921d635717140963dfd28515cd0..f0fec4b308df9d51bcdb2fdc17abfa51b430280b 100644
--- a/packages/OS400/curl.inc.in
+++ b/packages/OS400/curl.inc.in
@@ -125,6 +125,8 @@
      d                 c                   X'00040000'
      d CURL_VERSION_UNIX_SOCKETS...
      d                 c                   X'00080000'
+     d CURL_VERSION_PSL...
+     d                 c                   X'00100000'
       *
      d CURL_HTTPPOST_FILENAME...
      d                 c                   X'00000001'