diff --git a/_posts/2.3/2021-05-01-install.md b/_posts/2.3/2021-05-01-install.md
index 6c1f9ad2..ca0c452c 100644
--- a/_posts/2.3/2021-05-01-install.md
+++ b/_posts/2.3/2021-05-01-install.md
@@ -511,6 +511,7 @@ dpkg: error processing package bbb-libreoffice-docker (--configure):
 Ubuntu 18.04 uses systemd-resolved, which presents a local caching resolver and registers this at `/etc/resolv.conf`. If you get they above error and have a local name server, such as `10.11.12.13`, then try adding it with the hosts `resolv.conf`.
 
 ```
+rm /etc/resolv.conf
 echo "nameserver 10.11.12.13" > /etc/resolv.conf
 ```
  
diff --git a/_posts/2.4/2021-05-01-install.md b/_posts/2.4/2021-05-01-install.md
index 1b168ae3..2db44cf2 100644
--- a/_posts/2.4/2021-05-01-install.md
+++ b/_posts/2.4/2021-05-01-install.md
@@ -524,6 +524,7 @@ dpkg: error processing package bbb-libreoffice-docker (--configure):
 Ubuntu 18.04 uses systemd-resolved, which presents a local caching resolver and registers this at `/etc/resolv.conf`. If you get they above error and have a local name server, such as `10.11.12.13`, then try adding it with the hosts `resolv.conf`.
 
 ```
+rm /etc/resolv.conf
 echo "nameserver 10.11.12.13" > /etc/resolv.conf
 ```