diff --git a/package.json b/package.json
index 923680d..6b08e58 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,8 @@
   "activationEvents": [
     "onCommand:unicode-latex.insertMathSymbol",
     "onCommand:unicode-latex.replaceLatexNames",
-    "onLanguage:plaintext"
+    "onLanguage:plaintext",
+    "onLanguage:textile"
   ],
   "main": "./out/src/extension",
   "contributes": {
diff --git a/src/extension.ts b/src/extension.ts
index 643dc24..9100683 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -26,7 +26,7 @@ export function activate(context: vscode.ExtensionContext) {
         replaceWithUnicode(vscode.window.activeTextEditor);
     });
 
-    const selector: vscode.DocumentSelector = ['plaintext', 'markdown', 'coq'];
+    const selector: vscode.DocumentSelector = ['plaintext', 'markdown', 'coq','textile'];
     const provider = new LatexCompletionItemProvider(latexSymbols);
     let completionSub = vscode.languages.registerCompletionItemProvider(selector, provider, '\\');