diff --git a/mods/ITEMS/mcl_books/init.lua b/mods/ITEMS/mcl_books/init.lua
index 144cce1b4..95b45e69e 100644
--- a/mods/ITEMS/mcl_books/init.lua
+++ b/mods/ITEMS/mcl_books/init.lua
@@ -67,7 +67,7 @@ local make_description = function(title, author, generation)
 	else
 		desc = S("Tattered Book")
 	end
-	desc = desc .. "\n" .. minetest.colorize("#AAAAAA", S("by @1", author))
+	desc = desc .. "\n" .. minetest.colorize(mcl_colors.GRAY, S("by @1", author))
 	return desc
 end
 
diff --git a/mods/ITEMS/mcl_books/mod.conf b/mods/ITEMS/mcl_books/mod.conf
index 7c4513b00..cea9a5dd8 100644
--- a/mods/ITEMS/mcl_books/mod.conf
+++ b/mods/ITEMS/mcl_books/mod.conf
@@ -1,4 +1,4 @@
 name = mcl_books
 author = celeron55
 description = Books mod for MCL2
-optional_depends = mcl_init, mcl_core, mcl_sounds, mcl_mobitems, mcl_dye
+optional_depends = mcl_init, mcl_core, mcl_sounds, mcl_mobitems, mcl_dye, mcl_colors