diff --git a/vcl/unx/inc/saldata.hxx b/vcl/unx/inc/saldata.hxx
index 4164a0f..da5880c 100644
--- a/vcl/unx/inc/saldata.hxx
+++ b/vcl/unx/inc/saldata.hxx
@@ -88,8 +88,7 @@ public:
     inline	void			StopTimer();
     void					Timeout() const;
     
-    const rtl::OUString&    GetLocalHostName() const
-    { return maLocalHostName; }
+    const rtl::OUString&    GetLocalHostName();
 
     static int XErrorHdl( Display*, XErrorEvent* );
     static int XIOErrorHdl( Display* );
diff --git a/vcl/unx/source/app/saldata.cxx b/vcl/unx/source/app/saldata.cxx
index bfe96f7..3840844 100644
--- a/vcl/unx/source/app/saldata.cxx
+++ b/vcl/unx/source/app/saldata.cxx
@@ -272,7 +272,13 @@ X11SalData::X11SalData()
     m_pPlugin		= NULL;
 
     hMainThread_	= pthread_self();
-    osl_getLocalHostname( &maLocalHostName.pData );
+}
+
+const rtl::OUString& X11SalData::GetLocalHostName()
+{
+    if (!maLocalHostName.getLength())
+            osl_getLocalHostname( &maLocalHostName.pData );
+    return maLocalHostName;
 }
 
 X11SalData::~X11SalData()