diff --git a/utils/fgpanel/FGPanelProtocol.cxx b/utils/fgpanel/FGPanelProtocol.cxx
index 3f4b54a75..5f8e0e0e9 100644
--- a/utils/fgpanel/FGPanelProtocol.cxx
+++ b/utils/fgpanel/FGPanelProtocol.cxx
@@ -32,6 +32,8 @@
 #include <simgear/io/sg_socket.hxx>
 #include <simgear/misc/strutils.hxx>
 
+using namespace std;
+
 class PropertySetter {
 public:
   PropertySetter( SGPropertyNode_ptr node ) : _node(node) {}
diff --git a/utils/fgpanel/panel.hxx b/utils/fgpanel/panel.hxx
index 6d2962966..5a3c5fa67 100644
--- a/utils/fgpanel/panel.hxx
+++ b/utils/fgpanel/panel.hxx
@@ -41,7 +41,7 @@
 #include "FGTextureLoaderInterface.hxx"
 
 class FGPanelInstrument;
-
+using namespace std;
 
 ////////////////////////////////////////////////////////////////////////
 // Texture management.