diff --git a/Dockerfile b/Dockerfile
index ceb3dbe..fe45773 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,7 +20,7 @@
         chmod 0440 /etc/sudoers.d/$USERNAME && \
         # Replace 1000 with your user/group id
         usermod  --uid 1000 $USERNAME && \
-        groupmod --gid 1000 $USERNAME
+        groupmod --gid 1000 $USERNAME && \
         chown -Rf $USERNAME.$USERNAME /home/$USERNAME
 
 # Error constructing proxy for org.gnome.Terminal:/org/gnome/Terminal/Factory0: Failed to execute child process dbus-launch (No such file or directory)