diff --git a/run_onchange_before_23_tpm.sh b/run_onchange_before_23_tpm.sh
index afc4992..789961c 100644
--- a/run_onchange_before_23_tpm.sh
+++ b/run_onchange_before_23_tpm.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
 
 # Install TPM
-git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm
+[[ ! -d ~/.tmux/plugins/tpm ]] && git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm