Index: /trunk/src/VBox/Main/include/GuestCtrlImplPrivate.h
===================================================================
--- /trunk/src/VBox/Main/include/GuestCtrlImplPrivate.h	(revision 71505)
+++ /trunk/src/VBox/Main/include/GuestCtrlImplPrivate.h	(revision 71506)
@@ -199,7 +199,4 @@
         for (size_t i = 0; i < cArray; i++)
         {
-            if (rArray[i].isEmpty())
-                continue;
-
             int rc = RTEnvPutEx(m_hEnv, rArray[i].c_str());
             if (RT_FAILURE(rc))