diff --git a/c.nanorc b/c.nanorc
index ea08fb3..4510b2d 100644
--- a/c.nanorc
+++ b/c.nanorc
@@ -1,5 +1,10 @@
 ## Here is an example for C/C++.
 ##
+
+## Mac OSX users: If you use Mac OSX, it might be necessary to perform the following:
+##   1. Replace \< by [[:<:]]           
+##   2. Replace \> by [[:>:]]           
+
 syntax "c" "\.(c(c|pp|xx)?|C)$" "\.(h(h|pp|xx)?|H)$" "\.ii?$" "\.(def)$"
 color brightred "\<[A-Z_][0-9A-Z_]+\>" 
 color green "\<(float|double|bool|char|int|short|long|sizeof|enum|void|static|const|struct|union|typedef|extern|(un)?signed|inline)\>"
diff --git a/java.nanorc b/java.nanorc
index a432f81..ca50be9 100644
--- a/java.nanorc
+++ b/java.nanorc
@@ -1,5 +1,10 @@
 ## Here is an example for Java.
 ##
+
+## Mac OSX users: If you use Mac OSX, it might be necessary to perform the following:
+##   1. Replace \< by [[:<:]]           
+##   2. Replace \> by [[:>:]]           
+
 syntax "java" "\.java$"
 color green "\<(boolean|byte|char|double|float|int|long|new|short|this|transient|void)\>"
 color red "\<(break|case|catch|continue|default|do|else|finally|for|if|return|switch|throw|try|while)\>"
diff --git a/js.nanorc b/js.nanorc
index 79a4af0..16979b7 100644
--- a/js.nanorc
+++ b/js.nanorc
@@ -1,17 +1,12 @@
 ### all *js files  ( e.g. Firefox user.js, prefs.js )
 
-## Old version
-
-#syntax "jsfiles" "(\.|/|)js$"
-#color green "//.*$" start="\/\*" end="\*\/"
-#color blue "'(\\.|[^'])*'"
-#color red ""(\\.|[^\"])*""
-#color brightgreen "\<(true)\>"
-#color brightred "\<(false)\>" "http\:\/\/.*$"
-#color brightmagenta "[0-9](\\.|[^\"])*)"
-
 ## New updated taken from http://wiki.linuxhelp.net/index.php/Nano_Syntax_Highlighting
 
+## Mac OSX users: If you use Mac OSX, it might be necessary to perform the following:
+##   1. Replace \< by [[:<:]]
+##   2. Replace \> by [[:>:]]
+##   3. Replace \' by \\'
+
 syntax "JavaScript" "\.(js)$"
 
 ## Default
diff --git a/json.nanorc b/json.nanorc
index 1740a4c..fbff6b9 100644
--- a/json.nanorc
+++ b/json.nanorc
@@ -1,6 +1,11 @@
 syntax "json" "\.json$"
 header "^\{$"
 
+## Mac OSX users: If you use Mac OSX, it might be necessary to perform the following:
+##   1. Replace \< by [[:<:]]           
+##   2. Replace \> by [[:>:]]           
+##   3. Replace \' by \\'
+
 color blue   "\<[-]?[1-9][0-9]*([Ee][+-]?[0-9]+)?\>"  "\<[-]?[0](\.[0-9]+)?\>"
 color cyan  "\<null\>"
 color brightcyan "\<(true|false)\>"