diff --git a/src/plugins/qt4projectmanager/qt4project.cpp b/src/plugins/qt4projectmanager/qt4project.cpp
index 187a144f3df..67251b95c06 100644
--- a/src/plugins/qt4projectmanager/qt4project.cpp
+++ b/src/plugins/qt4projectmanager/qt4project.cpp
@@ -708,6 +708,10 @@ void Qt4Project::scheduleAsyncUpdate(Qt4ProFileNode *node)
             m_partialEvaluate.append(node);
         // and start the timer anew
         m_asyncUpdateTimer.start();
+
+        // Cancel running code model update
+        m_codeModelFuture.cancel();
+        m_codeModelCanceled = true;
     } else if (m_asyncUpdateState == AsyncUpdateInProgress) {
         // A update is in progress
         // And this slot only gets called if a file changed on disc