diff --git a/build.sh b/build.sh
index 1d8caba77764924ebb4e1d1ccd42e16591eb8956..31e228c76036c5314cca3a68009579541846276f 100755
--- a/build.sh
+++ b/build.sh
@@ -21,7 +21,6 @@ echo "compilation type: $comp_type"
 echo "Branch name: $branch"
 echo "GPU compilation: $with_gpu"
 
-
 if [ x"$hostname" == x"cifarm-centos-node"  ]; then
 	echo "Almalinux node"
 	foward_options="--with-cuda-on-backend=OpenMP"
@@ -44,10 +43,6 @@ if [ x"$hostname" == x"cifarm-mac-node.mpi-cbg.de"  ]; then
 	foward_options="--with-cuda-on-backend=SEQUENTIAL"
 	./install_CMAKE_on_CI.sh $HOME/openfpm_dependencies/openfpm_pdata/$branch/
 	export PATH="$HOME/openfpm_dependencies/openfpm_pdata/$branch/CMAKE/bin:$PATH"
-#	rm -rf /Users/admin/openfpm_dependencies/openfpm_pdata/$branch/
-#	rm -rf $HOME/openfpm_dependencies/openfpm_pdata/$branch/PETSC
-        #./install_CMAKE_on_CI.sh $HOME/openfpm_dependencies/openfpm_pdata/$branch/
-#	export PATH="$HOME/openfpm_dependencies/openfpm_pdata/$branch/CMAKE/bin:$PATH"
 fi
 
 if [ x"$hostname" == x"falcon1" ]; then
@@ -72,6 +67,8 @@ else
 	mkdir $HOME/openfpm_dependencies/openfpm_pdata/$branch
 fi
 
+rm -rf dependency_dir/ZLIB
+
 if [ x"$with_gpu" == x"1" ]; then
 	foward_options="$foward_options --with-cuda-on-backend=CUDA"
 else