diff --git a/source/served/commands/calltips.d b/source/served/commands/calltips.d
index d55eef2..2894023 100644
--- a/source/served/commands/calltips.d
+++ b/source/served/commands/calltips.d
@@ -123,9 +123,9 @@ SignatureHelp provideSignatureHelp(TextDocumentPositionParams params)
 {
 	auto document = documents[params.textDocument.uri];
 	string file = document.uri.uriToFile;
-	if (document.languageId == "d")
+	if (document.getLanguageId == "d")
 		return provideDSignatureHelp(params, file, document);
-	else if (document.languageId == "diet")
+	else if (document.getLanguageId == "diet")
 		return provideDietSignatureHelp(params, file, document);
 	else
 		return SignatureHelp.init;
diff --git a/source/served/commands/code_lens.d b/source/served/commands/code_lens.d
index b2a72ce..605486c 100644
--- a/source/served/commands/code_lens.d
+++ b/source/served/commands/code_lens.d
@@ -22,7 +22,7 @@ CodeLens[] provideCodeLens(CodeLensParams params)
 {
 	auto document = documents[params.textDocument.uri];
 	string file = document.uri.uriToFile;
-	if (document.languageId != "d")
+	if (document.getLanguageId != "d")
 		return [];
 	CodeLens[] ret;
 	if (workspace(params.textDocument.uri).config.d.enableDMDImportTiming)
diff --git a/source/served/commands/definition.d b/source/served/commands/definition.d
index 4dc57de..34ea98c 100644
--- a/source/served/commands/definition.d
+++ b/source/served/commands/definition.d
@@ -105,7 +105,7 @@ ArrayOrSingle!Location provideDefinition(TextDocumentPositionParams params)
 		return ArrayOrSingle!Location.init;
 
 	auto document = documents[params.textDocument.uri];
-	if (document.languageId != "d")
+	if (document.getLanguageId != "d")
 		return ArrayOrSingle!Location.init;
 
 	auto result = findDeclarationImpl(instance, document,
@@ -125,7 +125,7 @@ Hover provideHover(TextDocumentPositionParams params)
 		return Hover.init;
 
 	auto document = documents[params.textDocument.uri];
-	if (document.languageId != "d")
+	if (document.getLanguageId != "d")
 		return Hover.init;
 
 	DCDComponent dcd = instance.get!DCDComponent();
diff --git a/source/served/commands/format.d b/source/served/commands/format.d
index 74a1818..8802bda 100644
--- a/source/served/commands/format.d
+++ b/source/served/commands/format.d
@@ -132,7 +132,7 @@ TextEdit[] provideFormatting(DocumentFormattingParams params)
 	auto config = workspace(params.textDocument.uri).config;
 	auto document = documents[params.textDocument.uri];
 	string result;
-	if (document.languageId == "d")
+	if (document.getLanguageId == "d")
 	{
 		if (!config.d.enableFormatting)
 			return [];
@@ -141,7 +141,7 @@ TextEdit[] provideFormatting(DocumentFormattingParams params)
 		result = backend.get!DfmtComponent.format(document.rawText,
 				generateDfmtArgs(config, document.eolAt(0))).getYield;
 	}
-	else if (document.languageId == "sdl")
+	else if (document.getLanguageId == "sdl")
 	{
 		if (!config.sdl.enableFormatting)
 			return [];
@@ -163,7 +163,7 @@ TextEdit[] provideFormatting(DocumentFormattingParams params)
 	}
 	else
 	{
-		trace("attemted to format code that has unsupported language: '", document.languageId, "'");
+		trace("attemted to format code that has unsupported language: '", document.getLanguageId, "'");
 		return [];
 	}
 	return diff(document, result);
diff --git a/source/served/commands/symbol_search.d b/source/served/commands/symbol_search.d
index cb60b0c..50231fa 100644
--- a/source/served/commands/symbol_search.d
+++ b/source/served/commands/symbol_search.d
@@ -76,7 +76,7 @@ SymbolInformationEx[] provideDocumentSymbolsOld(DocumentSymbolParamsEx params)
 	if (cached.symbolsVerbose.length)
 		return params.verbose ? cached.symbolsVerbose : cached.symbols;
 	auto document = documents.tryGet(params.textDocument.uri);
-	if (document.languageId != "d")
+	if (document.getLanguageId != "d")
 		return null;
 
 	auto result = backend.best!DscannerComponent(params.textDocument.uri.uriToFile)