diff --git a/zsh/zshenv b/zsh/zshenv
index 1e83051..6085844 100644
--- a/zsh/zshenv
+++ b/zsh/zshenv
@@ -56,6 +56,11 @@ zstyle ':tmux:auto-start' name 'tmux'
 # FZF tmux properties.
 FZF_TMUX=1
 FZF_TMUX_HEIGHT=30%
+# Add fzf functions
+export FZF_CTRL_T_OPTS="--preview \" (( $+commands[bat] )) \
+       && bat --color=always --line-range :500 {} \
+       || cat {} \""
+export FZF_ALT_C_OPTS="--preview 'tree -C {} | head -100'"
 
 # Auto suggestion config
 ZSH_AUTOSUGGEST_HIGHLIGHT_STYLE="fg=7"