diff --git a/setenv_mjau.sh b/setenv_mjau.sh
index c96f79de..3b9fd92f 100644
--- a/setenv_mjau.sh
+++ b/setenv_mjau.sh
@@ -5,7 +5,6 @@ export DYLD_LIBRARY_PATH=$OPENSCAD_LIBRARIES/lib
 #export CGALDIR=$PWD/../install/CGAL-3.6
 #export QCODEEDITDIR=$PWD/../qcodeedit-2.2.3/install
 #export DYLD_LIBRARY_PATH=$OPENCSGDIR/lib:$QCODEEDITDIR/lib
-export EIGEN2DIR=$OPENSCAD_LIBRARIES
 
 # ccache:
 export PATH=/opt/local/libexec/ccache:$PATH