diff --git a/src/addon/downloader.cpp b/src/addon/downloader.cpp
index 7d59629ca07..641fd7c800f 100644
--- a/src/addon/downloader.cpp
+++ b/src/addon/downloader.cpp
@@ -336,7 +336,7 @@ class Transfer final
   }
 #endif
 
-  std::string get_url() const
+  const std::string& get_url() const
   {
     return m_url;
   }