diff --git a/runcoms/zpreztorc b/runcoms/zpreztorc
index 3b1669a..1624f59 100644
--- a/runcoms/zpreztorc
+++ b/runcoms/zpreztorc
@@ -43,7 +43,9 @@ zstyle ':prezto:load' pmodule \
   'fasd' \
   'git' \
   'ruby' \
-  'tmux'
+  'tmux' \
+  'syntax-highlighting' \
+  'history-substring-search'
 
 #
 # Autosuggestions
@@ -204,13 +206,13 @@ zstyle ':prezto:module:ruby:chruby' auto-switch 'yes'
 
 # Set syntax highlighters.
 # By default, only the main highlighter is enabled.
-# zstyle ':prezto:module:syntax-highlighting' highlighters \
-#   'main' \
-#   'brackets' \
-#   'pattern' \
-#   'line' \
-#   'cursor' \
-#   'root'
+zstyle ':prezto:module:syntax-highlighting' highlighters \
+  'main' \
+  'brackets' \
+  'pattern' \
+  'line' \
+  'cursor' \
+  'root'
 #
 # Set syntax highlighting styles.
 # zstyle ':prezto:module:syntax-highlighting' styles \