diff --git a/modules/cli/zsh/init.zsh b/modules/cli/zsh/init.zsh
index 1d4fea4..7bddf81 100644
--- a/modules/cli/zsh/init.zsh
+++ b/modules/cli/zsh/init.zsh
@@ -166,6 +166,11 @@ ZLE_RPROMPT_INDENT=0
 
 # execute arbitrary commands on startup since `zsh -sc` is not a real option :c
 if [[ -n CMD ]]; then
-	eval $CMD
+	# unset the cmd before executing it (for long processes)
+	cmd=$CMD
 	unset CMD
+	if [[ -n $TMUX ]]; then
+		tmux set-environment -r CMD
+	fi
+	eval $cmd
 fi