diff --git a/modules/tmux/README.md b/modules/tmux/README.md
index 5901c7ce..8d291a82 100644
--- a/modules/tmux/README.md
+++ b/modules/tmux/README.md
@@ -20,8 +20,8 @@ following line to *zpreztorc*:
 
     zstyle ':prezto:module:tmux:auto-start' remote 'yes'
 
-In both cases, it will create a background session named _#Prezto_ and attach
-every new shell to it.
+In both cases, it will create a background session named _prezto_ if the tmux
+server is not started.
 
 __Note__: With `auto-start` enabled, you may want to control how multiple
 sessions are managed. The `destroy-unattached` option of tmux controls if the
diff --git a/modules/tmux/init.zsh b/modules/tmux/init.zsh
index 2c310e47..de53afe2 100644
--- a/modules/tmux/init.zsh
+++ b/modules/tmux/init.zsh
@@ -23,18 +23,12 @@ if [[ -z "$TMUX" && ( -z "$INSIDE_EMACS" || -z "$EMACS" || -z "$VIM" ) ]] && ( \
 ); then
   tmux_session='prezto'
 
-  # Create the default '#Prezto' session if not available. 
-  if ! tmux has-session -t "$tmux_session" 2> /dev/null; then
+  # Create a first 'prezto' session if tmux is starting. 
+  if ! tmux has-session 2> /dev/null; then
     tmux start-server \; new-session -d -s "$tmux_session" \; set-option -t "$tmux_session" destroy-unattached off &> /dev/null
   fi
 
-  #By default, prezto sets destroy-unattached to on
-  tmux_destroy_unattached=`tmux show-options -v -g destroy-unattached`
-  if [[ -z "$tmux_destroy_unattached" ]]; then
-    tmux set-option -g destroy-unattached on
-  fi
-
-  #Opens the session '#Prezto' or the latest session used
+  #Opens the session 'prezto' or the latest session used
   exec tmux attach-session
 fi