diff --git a/src/input/api/DSU/DSUControllerProvider.cpp b/src/input/api/DSU/DSUControllerProvider.cpp
index 345e249f..89065be6 100644
--- a/src/input/api/DSU/DSUControllerProvider.cpp
+++ b/src/input/api/DSU/DSUControllerProvider.cpp
@@ -263,7 +263,7 @@ void DSUControllerProvider::reader_thread()
 		if (ec)
 		{
 #ifdef DEBUG_DSU_CLIENT
-				printf(" DSUControllerProvider::ReaderThread: exception %s\n", ex.what());
+				printf(" DSUControllerProvider::ReaderThread: exception %s\n", ec.what());
 #endif
 
 			// there's probably no server listening on the given address:port
@@ -406,10 +406,10 @@ void DSUControllerProvider::writer_thread()
 		{
 			m_socket.send_to(boost::asio::buffer(msg.get(), msg->GetSize()), m_receiver_endpoint);
 		}
-		catch (const std::exception&)
+		catch (const std::exception& ec)
 		{
 #ifdef DEBUG_DSU_CLIENT
-			printf(" DSUControllerProvider::WriterThread: exception %s\n", ex.what());
+			printf(" DSUControllerProvider::WriterThread: exception %s\n", ec.what());
 #endif
 			std::this_thread::sleep_for(std::chrono::milliseconds(250));
 		}