diff --git a/src/plugins/qt4projectmanager/qt-s60/rvcttoolchain.cpp b/src/plugins/qt4projectmanager/qt-s60/rvcttoolchain.cpp
index e2ca351419d276f1482d6fe5833f9a7ddfc67f28..4340d7b927006c1d13c629629d2033112662847c 100644
--- a/src/plugins/qt4projectmanager/qt-s60/rvcttoolchain.cpp
+++ b/src/plugins/qt4projectmanager/qt-s60/rvcttoolchain.cpp
@@ -261,6 +261,8 @@ void RVCTToolChain::addToEnvironment(ProjectExplorer::Environment &env)
         m_mixin.addEpocToEnvironment(&env);
         break;
     }
+    // we currently support RVCT v2.2 only:
+    env.set(QLatin1String("QT_RVCT_VERSION"), QLatin1String("2.2"));
 }
 
 QString RVCTToolChain::makeCommand() const