diff --git a/lib/termsupport.zsh b/lib/termsupport.zsh
index 994c9c322..852a543c5 100644
--- a/lib/termsupport.zsh
+++ b/lib/termsupport.zsh
@@ -53,7 +53,7 @@ function omz_termsupport_precmd {
 
 # Runs before executing the command
 function omz_termsupport_preexec {
-  [[ "${DISABLE_AUTO_TITLE:-}" != true ]] || return
+  [[ "${DISABLE_AUTO_TITLE:-}" != true ]] || return 0
 
   emulate -L zsh
   setopt extended_glob