diff --git a/zshrc b/zshrc
index db7b3d1..a7ad76d 100644
--- a/zshrc
+++ b/zshrc
@@ -48,10 +48,15 @@ zle -N history-beginning-search-backward-end history-search-end
 zle -N history-beginning-search-forward-end history-search-end
 zle -N history-incremental-search-backward-end history-search-end
 
-bindkey "\e[A" history-beginning-search-backward-end
-bindkey "\e[B" history-beginning-search-forward-end
+[[ -n "${key[PageUp]}"   ]]  && bindkey  "${key[PageUp]}"    history-beginning-search-backward
+[[ -n "${key[PageDown]}" ]]  && bindkey  "${key[PageDown]}"  history-beginning-search-forward
 bindkey '^R' history-incremental-search-backward-end
 
+# Syntax highlighting, if available.
+if [[ -f /usr/share/zsh/plugins/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh ]]; then
+	source /usr/share/zsh/plugins/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
+fi
+
 # Home and end keys working
 bindkey "${terminfo[khome]}" beginning-of-line
 bindkey "${terminfo[kend]}" end-of-line