diff --git a/autoconf_share/variants.lofar9 b/autoconf_share/variants.lofar9
index f2ea81732c57e566a4f3752f6266005b2841b56f..30996a6dd07f7cd0ea57b2d0b7bce66365576475 100644
--- a/autoconf_share/variants.lofar9
+++ b/autoconf_share/variants.lofar9
@@ -1,4 +1,4 @@
-gnu3.compiler.conf: CXX=ccache\ g++-3.4 --with-cppflags="-m32 -msse -m3dnow -Wno-deprecated -Wa,--32" --with-threads --with-ldflags="--enable-new-dtags"
+gnu3.compiler.conf: CXX=ccache\ g++-3.4 --with-cppflags="-m32 -msse -msse2 -m3dnow -Wno-deprecated -Wa,--32" --with-sse2 --with-threads --with-ldflags="--enable-new-dtags"
 gnu3.compiler.aipspp.var: --with-aipspp=/aips++/prod/linux_gnu
 
 #gnu3.compiler.conf: CXX=ccache\ /usr/local0/gcc-3.4.3/bin/g++ --with-cppflags="-m32 -msse -m3dnow -Wno-deprecated -Wa,--32" --with-threads --with-ldflags="--enable-new-dtags"