diff --git a/.zshrc b/.zshrc
index 25c3faf..35b39df 100644
--- a/.zshrc
+++ b/.zshrc
@@ -147,7 +147,9 @@ _fzf_compgen_dir() {
 
 source ~/fzf-git.sh/fzf-git.sh
 
-export FZF_CTRL_T_OPTS="--preview 'bat -n --color=always --line-range :500 {}'"
+show_file_or_dir_preview="if [ -d {} ]; then eza --tree --color=always {} | head -200; else bat -n --color=always --line-range :500 {}; fi"
+
+export FZF_CTRL_T_OPTS="--preview '$show_file_or_dir_preview'"
 export FZF_ALT_C_OPTS="--preview 'eza --tree --color=always {} | head -200'"
 
 # Advanced customization of fzf options via _fzf_comprun function
@@ -159,9 +161,9 @@ _fzf_comprun() {
 
   case "$command" in
     cd)           fzf --preview 'eza --tree --color=always {} | head -200' "$@" ;;
-    export|unset) fzf --preview "eval 'echo \$'{}"         "$@" ;;
+    export|unset) fzf --preview "eval 'echo \${}'"         "$@" ;;
     ssh)          fzf --preview 'dig {}'                   "$@" ;;
-    *)            fzf --preview "bat -n --color=always --line-range :500 {}" "$@" ;;
+    *)            fzf --preview "$show_file_or_dir_preview" "$@" ;;
   esac
 }