diff --git a/share/qtcreator/lua-plugins/ai_asistant/init.lua b/share/qtcreator/lua-plugins/ai_asistant/init.lua
index e6ab2f4a611..afd6c743da3 100644
--- a/share/qtcreator/lua-plugins/ai_asistant/init.lua
+++ b/share/qtcreator/lua-plugins/ai_asistant/init.lua
@@ -277,15 +277,15 @@ local function buildRequest()
 
   local document = editor:document()
   local filePath = document:file()
-  local doc_version = Client.documentVersion(filePath)
-  if doc_version == -1 then
-    print("No document version found")
+  local ok, doc_version = Client:documentVersion(filePath)
+  if not ok then
+    print("No document version found:", doc_version)
     return
   end
 
-  local doc_uri = Client.hostPathToServerUri(filePath)
-  if doc_uri == nil or doc_uri == "" then
-    print("No document uri found")
+  local ok, doc_uri = Client:hostPathToServerUri(filePath)
+  if not ok then
+    print("No document uri found", doc_uri)
     return
   end
 
diff --git a/src/plugins/languageclient/lualanguageclient/lualanguageclient.cpp b/src/plugins/languageclient/lualanguageclient/lualanguageclient.cpp
index c78be12ac4b..82f4a091dc2 100644
--- a/src/plugins/languageclient/lualanguageclient/lualanguageclient.cpp
+++ b/src/plugins/languageclient/lualanguageclient/lualanguageclient.cpp
@@ -695,25 +695,24 @@ static void registerLuaApi()
                 return luaClientWrapper;
             },
             "documentVersion",
-            [](const Utils::FilePath &path) -> int {
-                auto client = LanguageClientManager::clientForFilePath(path);
-                if (!client) {
-                    qWarning() << "documentVersion(). No client for file path:" << path;
-                    return -1;
-                }
+            [](LuaClientWrapper *wrapper,
+               const Utils::FilePath &path) -> std::tuple<bool, std::variant<int, QString>> {
+                auto clients = wrapper->clientsForDocument(
+                    TextEditor::TextDocument::textDocumentForFilePath(path));
+                if (clients.empty())
+                    return {false, "No client found."};
 
-                return client->documentVersion(path);
+                return {true, clients.first()->documentVersion(path)};
             },
 
             "hostPathToServerUri",
-            [](const Utils::FilePath &path) -> QString {
-                auto client = LanguageClientManager::clientForFilePath(path);
-                if (!client) {
-                    qWarning() << "hostPathToServerUri(). No client for file path:" << path;
-                    return {};
-                }
+            [](LuaClientWrapper *wrapper, const Utils::FilePath &path) -> std::tuple<bool, QString> {
+                auto clients = wrapper->clientsForDocument(
+                    TextEditor::TextDocument::textDocumentForFilePath(path));
+                if (clients.empty())
+                    return {false, "No client found."};
 
-                return client->hostPathToServerUri(path).toString();
+                return {true, clients.first()->hostPathToServerUri(path).toString()};
             });
 
         wrapperClass["sendMessageWithIdForDocument"]
diff --git a/src/plugins/lua/meta/lsp.lua b/src/plugins/lua/meta/lsp.lua
index 5186afe2349..37a3c2671e5 100644
--- a/src/plugins/lua/meta/lsp.lua
+++ b/src/plugins/lua/meta/lsp.lua
@@ -46,11 +46,13 @@ function lsp.Client:sendMessageForDocument(document, msg) end
 function lsp.Client:sendMessageWithIdForDocument(document, msg) end
 
 ---@param filePath FilePath to get the version of.
----@return integer Returns -1 on error, otherwise current document version.
+---@return boolean ok Returns false on error, otherwise true.
+---@return integer|string error_or_version Current document version, or an error message.
 function lsp.Client:documentVersion(filePath) end
 ---
 ---@param filePath table file path to get the uri of.
----@return string Returns empty string on error, otherwise the server URI string.
+---@return boolean ok Returns false on error, otherwise true.
+---@return string error_or_uri The server URI string, or an error message.
 function lsp.Client:hostPathToServerUri(filePath) end
 
 ---Creates a new Language Client.