diff --git a/src/plugins/languageclient/languageclientformatter.cpp b/src/plugins/languageclient/languageclientformatter.cpp
index 4097d000ce0..300208e8bf9 100644
--- a/src/plugins/languageclient/languageclientformatter.cpp
+++ b/src/plugins/languageclient/languageclientformatter.cpp
@@ -25,6 +25,7 @@
 
 #include "languageclientformatter.h"
 
+#include "client.h"
 #include "languageclientutils.h"
 
 #include <texteditor/tabsettings.h>
diff --git a/src/plugins/languageclient/languageclientformatter.h b/src/plugins/languageclient/languageclientformatter.h
index a9be3f7cab6..5c03b2ef261 100644
--- a/src/plugins/languageclient/languageclientformatter.h
+++ b/src/plugins/languageclient/languageclientformatter.h
@@ -25,13 +25,16 @@
 
 #pragma once
 
-#include "client.h"
+#include <languageserverprotocol/icontent.h>
+#include <languageserverprotocol/languagefeatures.h>
 
 #include <texteditor/formatter.h>
 
 namespace TextEditor { class TextDocument; }
 namespace LanguageClient {
 
+class Client;
+
 class LanguageClientFormatter : public TextEditor::Formatter
 {
 public: