diff --git a/.tmux.conf b/.tmux.conf
index dc69cbf..e69a227 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -1,6 +1,6 @@
 # bind tmux cmds to ctrl+a
 unbind C-b
-set -g prefix C-z
+set -g prefix C-s
 
 # activity monitoring
 setw -g monitor-activity on
diff --git a/.yadm/alt/.zshrc##Linux b/.yadm/alt/.zshrc##Linux
index 9ae8da3..6c3ce78 100644
--- a/.yadm/alt/.zshrc##Linux
+++ b/.yadm/alt/.zshrc##Linux
@@ -141,6 +141,9 @@ for f in ~/.zsh.d/*.zsh; do
   source "$f"
 done
 
+if [[ $(pidof ssh-agent |wc -w) == 0 ]]; then
+  ssh-agent -s > ~/.ssh/agent
+fi
 eval "$(<~/.ssh/agent)"
 # The next line updates PATH for the Google Cloud SDK.
 if [ -f /opt/google-cloud-sdk/path.zsh.inc ]; then