diff --git a/INSTALL.md b/INSTALL.md
index 92046b6..1f0d923 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -55,9 +55,10 @@ Note that `zsh-syntax-highlighting` must be the last plugin sourced.
 The zsh-syntax-highlighting authors recommend manual installation over the use
 of a framework or plugin manager.
 
-This list is incomplete as there are too many [frameworks / plugin managers]
-(https://github.com/unixorn/awesome-zsh-plugins#frameworks) to list them all
-here.
+This list is incomplete as there are too many
+[frameworks / plugin managers][framework-list] to list them all here.
+
+[framework-list]: https://github.com/unixorn/awesome-zsh-plugins#frameworks
 
 #### [Antigen](https://github.com/zsh-users/antigen)
 
@@ -80,9 +81,10 @@ your `.zshrc`.
 
 #### [Prezto](https://github.com/sorin-ionescu/prezto)
 
-Zsh-syntax-highlighting is included with Prezto. See the [Prezto documentation]
-(https://github.com/sorin-ionescu/prezto/tree/master/modules/syntax-highlighting)
-to enable and configure highlighters.
+Zsh-syntax-highlighting is included with Prezto. See the
+[Prezto documentation][prezto-docs] to enable and configure highlighters.
+
+[prezto-docs]: https://github.com/sorin-ionescu/prezto/tree/master/modules/syntax-highlighting
 
 #### [zgen](https://github.com/tarjoilija/zgen)