diff --git a/config.def.h b/config.def.h
index 9e0c293..0a08aea 100644
--- a/config.def.h
+++ b/config.def.h
@@ -1,3 +1,4 @@
+/* Taken from https://github.com/djpohly/dwl/issues/466 */
 #define COLOR(hex)    { ((hex >> 24) & 0xFF) / 255.0f, \
                         ((hex >> 16) & 0xFF) / 255.0f, \
                         ((hex >> 8) & 0xFF) / 255.0f, \