diff --git a/.jenkins.d/10-ndn-cxx.sh b/.jenkins.d/10-ndn-cxx.sh
index c38011c..2af7d6a 100755
--- a/.jenkins.d/10-ndn-cxx.sh
+++ b/.jenkins.d/10-ndn-cxx.sh
@@ -2,38 +2,30 @@
 set -x
 set -e
 
-cd /tmp
-BUILD="no"
-if [ ! -d ndn-cxx ]; then
-    git clone --depth 1 git://github.com/named-data/ndn-cxx
-    cd ndn-cxx
-    BUILD="yes"
+pushd /tmp >/dev/null
+
+INSTALLED_VERSION=$((cd ndn-cxx && git rev-parse HEAD) 2>/dev/null || echo NONE)
+
+sudo rm -Rf ndn-cxx-latest
+git clone --depth 1 git://github.com/named-data/ndn-cxx ndn-cxx-latest
+LATEST_VERSION=$((cd ndn-cxx-latest && git rev-parse HEAD) 2>/dev/null || echo UNKNOWN)
+
+if [[ $INSTALLED_VERSION != $LATEST_VERSION ]]; then
+    sudo rm -Rf ndn-cxx
+    mv ndn-cxx-latest ndn-cxx
 else
-    cd ndn-cxx
-    INSTALLED_VERSION=`git rev-parse HEAD || echo NONE`
-    sudo rm -Rf latest-version
-    git clone --depth 1 git://github.com/named-data/ndn-cxx latest-version
-    cd latest-version
-    LATEST_VERSION=`git rev-parse HEAD || echo UNKNOWN`
-    cd ..
-    rm -Rf latest-version
-    if [ "$INSTALLED_VERSION" != "$LATEST_VERSION" ]; then
-        cd ..
-        sudo rm -Rf ndn-cxx
-        git clone --depth 1 git://github.com/named-data/ndn-cxx
-        cd ndn-cxx
-        BUILD="yes"
-    fi
+    sudo rm -Rf ndn-cxx-latest
 fi
 
 sudo rm -Rf /usr/local/include/ndn-cxx
 sudo rm -f /usr/local/lib/libndn-cxx*
 sudo rm -f /usr/local/lib/pkgconfig/libndn-cxx*
 
-if [ "$BUILD" = "yes" ]; then
-    sudo ./waf distclean --color=yes
-fi
+pushd ndn-cxx >/dev/null
 
-./waf configure --color=yes --without-osx-keychain
+./waf configure -j1 --color=yes --without-osx-keychain
 ./waf -j1 --color=yes
-sudo ./waf install --color=yes
+sudo ./waf install -j1 --color=yes
+
+popd >/dev/null
+popd >/dev/null