diff --git a/functions b/functions
index d5294f475..56bda86b9 100644
--- a/functions
+++ b/functions
@@ -126,10 +126,12 @@ install_puppet() {
         print_header 'Setup (Debian based)'
         # Puppetlabs packaging:
         # - xenial: puppet4 only
-        echo "deb ${NODEPOOL_PUPPETLABS_MIRROR} `lsb_release -s -c` PC1" | $SUDO tee /etc/apt/sources.list.d/puppetlabs.list
-        $SUDO apt-key add files/GPG-KEY-puppetlabs
-        $SUDO apt-key add files/GPG-KEY-ceph
-        $SUDO apt-get update
+        if [ "${MANAGE_REPOS}" == "true" ] ; then
+            echo "deb ${NODEPOOL_PUPPETLABS_MIRROR} `lsb_release -s -c` PC1" | $SUDO tee /etc/apt/sources.list.d/puppetlabs.list
+            $SUDO apt-key add files/GPG-KEY-puppetlabs
+            $SUDO apt-key add files/GPG-KEY-ceph
+            $SUDO apt-get update
+        fi
         $SUDO apt-get install -y ${PUPPET_PKG}
     elif is_fedora; then
         print_header 'Setup (RedHat based)'