diff --git a/init.zsh b/init.zsh
index 665e6c40..74d9edde 100644
--- a/init.zsh
+++ b/init.zsh
@@ -12,7 +12,7 @@
 # Check for the minimum supported version.
 min_zsh_version='4.3.17'
 if ! autoload -Uz is-at-least || ! is-at-least "$min_zsh_version"; then
-  print "prezto: old shell detected, minimum required: $min_zsh_version" >&2
+  printf "prezto: old shell detected, minimum required: %s\n" "$min_zsh_version" >&2
   return 1
 fi
 unset min_zsh_version