diff --git a/modules/prompt/init.zsh b/modules/prompt/init.zsh
index d976615..0ec007c 100644
--- a/modules/prompt/init.zsh
+++ b/modules/prompt/init.zsh
@@ -10,9 +10,9 @@ autoload -Uz promptinit && promptinit
 
 # Load the prompt theme.
 zstyle -a ':prezto:module:prompt' theme 'prompt_argv'
-if (( $#prompt_argv > 0 )); then
-  prompt "$prompt_argv[@]"
-else
+if [[ "$TERM" == (dumb|linux|*bsd*) ]] || (( $#prompt_argv < 1 )); then
   prompt 'off'
+else
+  prompt "$prompt_argv[@]"
 fi
 unset prompt_argv