diff --git a/libpromises/mod_common.c b/libpromises/mod_common.c
index a923fb6f2b..3e8cbe902b 100644
--- a/libpromises/mod_common.c
+++ b/libpromises/mod_common.c
@@ -263,7 +263,7 @@ const ConstraintSyntax CFG_CONTROLBODY[COMMON_CONTROL_MAX + 1] =
     ConstraintSyntaxNewBool("fips_mode", "Activate full FIPS mode restrictions. Default value: false", SYNTAX_STATUS_NORMAL),
     ConstraintSyntaxNewReal("bwlimit", CF_VALRANGE, "Limit outgoing protocol bandwidth in Bytes per second", SYNTAX_STATUS_NORMAL),
     ConstraintSyntaxNewBool("cache_system_functions", "Cache the result of system functions. Default value: true", SYNTAX_STATUS_NORMAL),
-    ConstraintSyntaxNewOption("protocol_version", "1,classic,2,tls,3,cookie,latest", "CFEngine protocol version to use when connecting to the server. Default: \"latest\"", SYNTAX_STATUS_NORMAL),
+    ConstraintSyntaxNewOption("protocol_version", "1,classic,2,tls,3,cookie,4,filestream,latest", "CFEngine protocol version to use when connecting to the server. Default: \"latest\"", SYNTAX_STATUS_NORMAL),
     ConstraintSyntaxNewString("tls_ciphers", "", "List of acceptable ciphers in outgoing TLS connections, defaults to OpenSSL's default. For syntax help see man page for \"openssl ciphers\"", SYNTAX_STATUS_NORMAL),
     ConstraintSyntaxNewString("tls_min_version", "", "Minimum acceptable TLS version for outgoing connections, defaults to OpenSSL's default", SYNTAX_STATUS_NORMAL),
     ConstraintSyntaxNewStringList("package_inventory", ".*", "Name of the package manager used for software inventory management", SYNTAX_STATUS_NORMAL),
diff --git a/libpromises/mod_files.c b/libpromises/mod_files.c
index d8e94fd835..7f2abf904a 100644
--- a/libpromises/mod_files.c
+++ b/libpromises/mod_files.c
@@ -325,7 +325,7 @@ static const ConstraintSyntax copy_from_constraints[] =
     ConstraintSyntaxNewBool("trustkey", "true/false trust public keys from remote server if previously unknown. Default value: false", SYNTAX_STATUS_NORMAL),
     ConstraintSyntaxNewBool("type_check", "true/false compare file types before copying and require match", SYNTAX_STATUS_NORMAL),
     ConstraintSyntaxNewBool("verify", "true/false verify transferred file by hashing after copy (resource penalty). Default value: false", SYNTAX_STATUS_NORMAL),
-    ConstraintSyntaxNewOption("protocol_version", "1,classic,2,tls,3,cookie,latest", "CFEngine protocol version to use when connecting to the server. Default: undefined", SYNTAX_STATUS_NORMAL),
+    ConstraintSyntaxNewOption("protocol_version", "1,classic,2,tls,3,cookie,4,filestream,latest", "CFEngine protocol version to use when connecting to the server. Default: undefined", SYNTAX_STATUS_NORMAL),
     ConstraintSyntaxNewBool("missing_ok", "true/false Do not treat missing file as an error. Default value: false", SYNTAX_STATUS_NORMAL),
     ConstraintSyntaxNewNull()
 };