diff --git a/setup/so-functions b/setup/so-functions
index de2e5cd40..4d65b6256 100755
--- a/setup/so-functions
+++ b/setup/so-functions
@@ -1056,7 +1056,7 @@ installer_prereq_packages() {
 			retry 150 10 "apt-get -y install network-manager ethtool" >> "$setup_log" 2>&1 || fail_setup
 			if [[ $is_debian ]]; then
 				info "Enabling network manager for the main interface"
-				logCmd "sed -i 's/managed=false/managed=true/g' /etc/NetworkManager/NetworkManager.conf" 
+				logCmd "sed -i s/managed=false/managed=true/g /etc/NetworkManager/NetworkManager.conf" 
 			fi
 			logCmd systemctl enable NetworkManager
 			logCmd systemctl start NetworkManager