diff --git a/src/libs/languageserverprotocol/jsonkeys.h b/src/libs/languageserverprotocol/jsonkeys.h
index 0cdfaf1d34a..c45ded8c34b 100644
--- a/src/libs/languageserverprotocol/jsonkeys.h
+++ b/src/libs/languageserverprotocol/jsonkeys.h
@@ -119,6 +119,7 @@ constexpr char implementationProviderKey[] = "implementationProvider";
 constexpr char includeDeclarationKey[] = "includeDeclaration";
 constexpr char includeTextKey[] = "includeText";
 constexpr char initializationOptionsKey[] = "initializationOptions";
+constexpr char insertFinalNewlineKey[] = "insertFinalNewline";
 constexpr char insertSpaceKey[] = "insertSpace";
 constexpr char insertTextFormatKey[] = "insertTextFormat";
 constexpr char insertTextKey[] = "insertText";
@@ -202,6 +203,8 @@ constexpr char traceKey[] = "trace";
 constexpr char triggerCharacterKey[] = "triggerCharacter";
 constexpr char triggerCharactersKey[] = "triggerCharacters";
 constexpr char triggerKindKey[] = "triggerKind";
+constexpr char trimFinalNewlinesKey[] = "trimFinalNewlines";
+constexpr char trimTrailingWhitespaceKey[] = "trimTrailingWhitespace";
 constexpr char typeDefinitionKey[] = "typeDefinition";
 constexpr char typeDefinitionProviderKey[] = "typeDefinitionProvider";
 constexpr char typeKey[] = "type";
diff --git a/src/libs/languageserverprotocol/languagefeatures.h b/src/libs/languageserverprotocol/languagefeatures.h
index 2fe88cf70ba..5b1b9da3c2c 100644
--- a/src/libs/languageserverprotocol/languagefeatures.h
+++ b/src/libs/languageserverprotocol/languagefeatures.h
@@ -685,6 +685,24 @@ public:
     bool insertSpace() const { return typedValue<bool>(insertSpaceKey); }
     void setInsertSpace(bool insertSpace) { insert(insertSpaceKey, insertSpace); }
 
+    Utils::optional<bool> trimTrailingWhitespace() const
+    { return optionalValue<bool>(trimTrailingWhitespaceKey); }
+    void setTrimTrailingWhitespace(bool trimTrailingWhitespace)
+    { insert(trimTrailingWhitespaceKey, trimTrailingWhitespace); }
+    void clearTrimTrailingWhitespace() { remove(trimTrailingWhitespaceKey); }
+
+    Utils::optional<bool> insertFinalNewline() const
+    { return optionalValue<bool>(insertFinalNewlineKey); }
+    void setInsertFinalNewline(bool insertFinalNewline)
+    { insert(insertFinalNewlineKey, insertFinalNewline); }
+    void clearInsertFinalNewline() { remove(insertFinalNewlineKey); }
+
+    Utils::optional<bool> trimFinalNewlines() const
+    { return optionalValue<bool>(trimFinalNewlinesKey); }
+    void setTrimFinalNewlines(bool trimFinalNewlines)
+    { insert(trimFinalNewlinesKey, trimFinalNewlines); }
+    void clearTrimFinalNewlines() { remove(trimFinalNewlinesKey); }
+
     QHash<QString, DocumentFormattingProperty> properties() const;
     void setProperty(const QString &key, const DocumentFormattingProperty &property);
     void removeProperty(const QString &key) { remove(key); }