diff --git a/lib/private/AppFramework/Http/Request.php b/lib/private/AppFramework/Http/Request.php
index 6428f7116b0e056bca561f562d90a7b2c23c262a..d0ecdbea6c706f06ccc9f0a3b1ce4f6c8ed4a352 100644
--- a/lib/private/AppFramework/Http/Request.php
+++ b/lib/private/AppFramework/Http/Request.php
@@ -308,7 +308,7 @@ class Request implements \ArrayAccess, \Countable, IRequest {
 	/**
 	 * Returns the value for a specific http header.
 	 *
-	 * This method returns null if the header did not exist.
+	 * This method returns an empty string if the header did not exist.
 	 *
 	 * @param string $name
 	 * @return string