diff --git a/src/DSManager.cpp b/src/DSManager.cpp
index 6581af7..456b43f 100644
--- a/src/DSManager.cpp
+++ b/src/DSManager.cpp
@@ -1944,7 +1944,7 @@ void DiscoveryServerManager::on_subscriber_discovery(
     if (part_name.empty())
     {
         // if remote use prefix instead of name
-        part_name = static_cast<std::ostringstream&>(std::ostringstream() << partid).str();
+        part_name = static_cast<std::ostringstream>(std::ostringstream() << partid).str();
     }
 
     switch (info.status)
@@ -2020,7 +2020,7 @@ void DiscoveryServerManager::on_publisher_discovery(
     if (part_name.empty())
     {
         // if remote use prefix instead of name
-        part_name = static_cast<std::ostringstream&>(std::ostringstream() << partid).str();
+        part_name = static_cast<std::ostringstream>(std::ostringstream() << partid).str();
     }
 
     switch (info.status)