diff --git a/rc/fzf.kak b/rc/fzf.kak
index acffb8a..a038c94 100644
--- a/rc/fzf.kak
+++ b/rc/fzf.kak
@@ -326,7 +326,7 @@ define-command -hidden fzf -params 2..3 %{ evaluate-commands %sh{
         else
             preview_pos='sleep 0.1; if [ $(tput cols) -gt $(expr $(tput lines) \* 2) ]; then pos=right:50%; else pos=top:60%; fi;'
         fi
-        additional_flags="--preview '($highlighter || cat {}) 2>/dev/null | head -n $kak_opt_fzf_preview_lines' --preview-window=\$pos $additional_flags"
+        additional_flags="--preview '($highlighter || cat {}) 2>/dev/null | head -n $kak_opt_fzf_preview_lines' --preview-window=\${pos:-right:50%} $additional_flags"
     fi
 
     if [ ! -z "${kak_client_env_TMUX}" ]; then