diff --git a/composer.lock b/composer.lock
index 379b97db..b0c6dab8 100644
--- a/composer.lock
+++ b/composer.lock
@@ -12,12 +12,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/daita/my-small-php-tools.git",
-                "reference": "ba839f3253672defc4bbb181493c78e2c96e272a"
+                "reference": "12090dc3ae29d2eb49d5274ca3f6ebfb76ce5997"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/daita/my-small-php-tools/zipball/ba839f3253672defc4bbb181493c78e2c96e272a",
-                "reference": "ba839f3253672defc4bbb181493c78e2c96e272a",
+                "url": "https://api.github.com/repos/daita/my-small-php-tools/zipball/12090dc3ae29d2eb49d5274ca3f6ebfb76ce5997",
+                "reference": "12090dc3ae29d2eb49d5274ca3f6ebfb76ce5997",
                 "shasum": ""
             },
             "require": {
@@ -40,7 +40,7 @@
                 }
             ],
             "description": "My small PHP Tools",
-            "time": "2018-11-27T14:31:43+00:00"
+            "time": "2018-11-28T10:47:43+00:00"
         }
     ],
     "packages-dev": [],
diff --git a/lib/Service/CurlService.php b/lib/Service/CurlService.php
index 3a420560..1aa94cc3 100644
--- a/lib/Service/CurlService.php
+++ b/lib/Service/CurlService.php
@@ -44,6 +44,7 @@ class CurlService {
 
 
 	const ASYNC_TOKEN = '/async/token/{token}';
+	const USER_AGENT = 'Nextcloud Social';
 
 
 	/** @var ConfigService */
@@ -104,6 +105,13 @@ class CurlService {
 	}
 
 
+	public function assignUserAgent(Request $request) {
+		$request->setUserAgent(
+			self::USER_AGENT . ' ' . $this->configService->getAppValue('installed_version')
+		);
+	}
+
+
 	/**
 	 * @param string $token
 	 *
@@ -139,6 +147,7 @@ class CurlService {
 
 		$headers[] = 'Accept: application/ld+json; profile="https://www.w3.org/ns/activitystreams"';
 
+		curl_setopt($curl, CURLOPT_USERAGENT, $request->getUserAgent());
 		curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 10);
 		curl_setopt($curl, CURLOPT_TIMEOUT, 20);