diff --git a/src/backends/R/rserver/rserver.cpp b/src/backends/R/rserver/rserver.cpp
--- a/src/backends/R/rserver/rserver.cpp
+++ b/src/backends/R/rserver/rserver.cpp
@@ -84,9 +84,9 @@
 {
     new RAdaptor(this);
 
-    QDir dir;
-    dir.mkdir(QDir::tempPath() + QString::fromLatin1("/cantor/rserver-%1").arg(getpid()));
     m_tmpDir=QDir::tempPath() + QString::fromLatin1("/cantor/rserver-%1").arg(getpid());
+    QDir dir;
+    dir.mkpath(m_tmpDir);
     qDebug()<<"storing plots at "<<m_tmpDir;
 
     initR();