diff --git a/corelib/lua_interface.c b/corelib/lua_interface.c
index ec1eadab..d6d3fe9b 100644
--- a/corelib/lua_interface.c
+++ b/corelib/lua_interface.c
@@ -1044,6 +1044,7 @@ int lua_get_swupdate_version(lua_State *L)
 {
 	const unsigned int version = VERSION;
 	const unsigned int patchlevel = VERSION_PATCHLEVEL;
+	const unsigned int sublevel = VERSION_SUBLEVEL;
 
 	lua_newtable (L);
 	lua_pushnumber(L, 1);
@@ -1052,8 +1053,12 @@ int lua_get_swupdate_version(lua_State *L)
 	lua_pushnumber(L, 2);
 	lua_pushnumber(L, patchlevel);
 	lua_settable(L, -3);
+	lua_pushnumber(L, 3);
+	lua_pushnumber(L, sublevel);
+	lua_settable(L, -3);
 	lua_push_enum(L, "version", version);
 	lua_push_enum(L, "patchlevel", patchlevel);
+	lua_push_enum(L, "sublevel", sublevel);
 	return 1;
 }
 
diff --git a/suricatta/server_wfx.lua b/suricatta/server_wfx.lua
index ea9c4036..0978ed50 100644
--- a/suricatta/server_wfx.lua
+++ b/suricatta/server_wfx.lua
@@ -1804,7 +1804,14 @@ M.job.workflow.dispatch:set(
 --- @field version string            Device client version information, sent to server in HTTP Header
 --- @field reset   function(device)  Reset `device` Table
 M.device = {
-    version = ("SWUpdate %04u.%02u"):format(table.unpack(suricatta.getversion() or { 2025, 5 })),
+    version = (function()
+        local version = suricatta.getversion()
+        local format = "SWUpdate %04u.%02u"
+        if version.sublevel > 0 then
+            format = format .. ".%02u"
+        end
+        return format:format(table.unpack(version))
+    end)(),
     reset = function(self)
         self.id = nil
         self.pstate = nil
diff --git a/suricatta/suricatta.lua b/suricatta/suricatta.lua
index 303e8639..24d6eb8f 100644
--- a/suricatta/suricatta.lua
+++ b/suricatta/suricatta.lua
@@ -320,8 +320,10 @@ suricatta.get_tmpdir = function() end
 --- @class suricatta.version
 --- @field [1]         number  SWUpdate's version
 --- @field [2]         number  SWUpdate's patch level
+--- @field [3]         number  SWUpdate's sub level
 --- @field version     number  SWUpdate's version
 --- @field patchlevel  number  SWUpdate's patch level
+--- @field sublevel    number  SWUpdate's sub level
 
 --- Get SWUpdate version.
 --