diff --git a/doc/enable-rainbow-colors.md b/doc/enable-rainbow-colors.md
index b9edc7f..28edca8 100644
--- a/doc/enable-rainbow-colors.md
+++ b/doc/enable-rainbow-colors.md
@@ -13,76 +13,91 @@ Insert below codes to the users `settings.json`
             "class:cpp": { "foreground": "#e1afc3" },
             "class:objective-c": { "foreground": "#e1afc3" },
             "class:objective-cpp": { "foreground": "#e1afc3" },
-            
+            "class:cuda-cpp": { "foreground": "#e1afc3" },
+
             "constructor:c": { "foreground": "#e5b124" },
             "constructor:cpp": { "foreground": "#e5b124" },
             "constructor:objective-c": { "foreground": "#e5b124" },
             "constructor:objective-cpp": { "foreground": "#e5b124" },
-            
+            "constructor:cuda-cpp": { "foreground": "#e5b124" },
+
             "enum:c": { "foreground": "#e1afc3" },
             "enum:cpp": { "foreground": "#e1afc3" },
             "enum:objective-c": { "foreground": "#e1afc3" },
             "enum:objective-cpp": { "foreground": "#e1afc3" },
-            
+            "enum:cuda-cpp": { "foreground": "#e1afc3" },
+
             "enumMember:c": { "foreground": "#429921" },
             "enumMember:cpp": { "foreground": "#429921" },
             "enumMember:objective-c": { "foreground": "#429921" },
             "enumMember:objective-cpp": { "foreground": "#429921" },
-            
+            "enumMember:cuda-cpp": { "foreground": "#429921" },
+
             "field:c": { "foreground": "#429921" },
             "field:cpp": { "foreground": "#429921" },
             "field:objective-c": { "foreground": "#429921" },
             "field:objective-cpp": { "foreground": "#429921" },
-            
+            "field:cuda-cpp": { "foreground": "#429921" },
+
             "function:c": { "foreground": "#e5b124" },
             "function:cpp": { "foreground": "#e5b124" },
             "function:objective-c": { "foreground": "#e5b124" },
             "function:objective-cpp": { "foreground": "#e5b124" },
-            
+            "function:cuda-cpp": { "foreground": "#e5b124" },
+
             "method:c": { "foreground": "#e5b124" },
             "method:cpp": { "foreground": "#e5b124" },
             "method:objective-c": { "foreground": "#e5b124" },
             "method:objective-cpp": { "foreground": "#e5b124" },
-            
+            "method:cuda-cpp": { "foreground": "#e5b124" },
+
             "parameter:c": { "foreground": "#e5b124" },
             "parameter:cpp": { "foreground": "#e5b124" },
             "parameter:objective-c": { "foreground": "#e5b124" },
             "parameter:objective-cpp": { "foreground": "#e5b124" },
-            
+            "parameter:cuda-cpp": { "foreground": "#e5b124" },
+
             "struct:c": { "foreground": "#e1afc3" },
             "struct:cpp": { "foreground": "#e1afc3" },
             "struct:objective-c": { "foreground": "#e1afc3" },
             "struct:objective-cpp": { "foreground": "#e1afc3" },
-            
+            "struct:cuda-cpp": { "foreground": "#e1afc3" },
+
             "typeAlias:c": { "foreground": "#e1afc3" },
             "typeAlias:cpp": { "foreground": "#e1afc3" },
             "typeAlias:objective-c": { "foreground": "#e1afc3" },
             "typeAlias:objective-cpp": { "foreground": "#e1afc3" },
-            
+            "typeAlias:cuda-cpp": { "foreground": "#e1afc3" },
+
             "typeParameter:c": { "foreground": "#e1afc3" },
             "typeParameter:cpp": { "foreground": "#e1afc3" },
             "typeParameter:objective-c": { "foreground": "#e1afc3" },
             "typeParameter:objective-cpp": { "foreground": "#e1afc3" },
-            
+            "typeParameter:cuda-cpp": { "foreground": "#e1afc3" },
+
             "variable:c": { "foreground": "#429921" },
             "variable:cpp": { "foreground": "#429921" },
             "variable:objective-c": { "foreground": "#429921" },
             "variable:objective-cpp": { "foreground": "#429921" },
-            
+            "variable:cuda-cpp": { "foreground": "#429921" },
+
             "*.static:c": { "fontStyle": "bold" },
             "*.static:cpp": { "fontStyle": "bold" },
             "*.static:objective-c": { "fontStyle": "bold" },
             "*.static:objective-cpp": { "fontStyle": "bold" },
-            
+            "*.static:cuda-cpp": { "fontStyle": "bold" },
+
             "*.classScope:c": { "fontStyle": "italic" },
             "*.classScope:cpp": { "fontStyle": "italic" },
             "*.classScope:objective-c": { "fontStyle": "italic" },
             "*.classScope:objective-cpp": { "fontStyle": "italic" },
-            
+            "*.classScope:cuda-cpp": { "fontStyle": "italic" },
+
             "*.namespaceScope:c": { "fontStyle": "bold underline" },
             "*.namespaceScope:cpp": { "fontStyle": "bold underline" },
             "*.namespaceScope:objective-c": { "fontStyle": "bold underline" },
             "*.namespaceScope:objective-cpp": { "fontStyle": "bold underline" },
+            "*.namespaceScope:cuda-cpp": { "fontStyle": "bold underline" },
 
             "class.id0": { "foreground": "#e1afc3" },
             "class.id1": { "foreground": "#d533bb" },
@@ -217,4 +232,4 @@ Insert below codes to the users `settings.json`
             "variable.id9": { "foreground": "#3e9f4a" }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/package.json b/package.json
index 6c3675e..d719192 100644
--- a/package.json
+++ b/package.json
@@ -47,6 +47,7 @@
     "onLanguage:cpp",
     "onLanguage:objective-c",
     "onLanguage:objective-cpp",
+    "onLanguage:cuda-cpp",
     "workspaceContains:.ccls",
     "workspaceContains:compile_commands.json"
   ],
diff --git a/src/serverContext.ts b/src/serverContext.ts
index 8bfa464..0bc1034 100644
--- a/src/serverContext.ts
+++ b/src/serverContext.ts
@@ -451,7 +451,7 @@ export class ServerContext implements Disposable {
     // Options to control the language client
     const clientOptions: LanguageClientOptions = {
       diagnosticCollectionName: 'ccls',
-      documentSelector: ['c', 'cpp', 'objective-c', 'objective-cpp'],
+      documentSelector: ['c', 'cpp', 'objective-c', 'objective-cpp', 'cuda-cpp'],
       // synchronize: {
       // 	configurationSection: 'ccls',
       // 	fileEvents: workspace.createFileSystemWatcher('**/.cc')