1 files changed, 3 insertions, 0 deletions
diff --git a/COPYING b/COPYING
index 70323b9..95e03e3 100644
--- a/COPYING
+++ b/COPYING
@@ -4,6 +4,9 @@ This software is available under a combination of GPL3+ and AGPL3+.
 This combination is explicitly allowed by section 13 of the licenses.
 See gpl-3.0.txt or agpl-3.0.txt for specific terms.
 
+In order to make life easy for users who run this software publicly,
+please set VENDOR_SOURCE in version.make if you make any modifications.
+
 History:
 
 Originally, tmwAthena was forked from eAthena in 2004.