diff --git a/README.md b/README.md
index a3260d4..dabae33 100644
--- a/README.md
+++ b/README.md
@@ -39,4 +39,6 @@ Donations are welcome! My Bitcoin wallet address is 1AmNvttxJ6zne8f2GEH8zMAMQuT4
 
 ![GPLv3](https://www.gnu.org/graphics/gplv3-127x51.png)
 
-This program is licensed under GNU General Public License, Version 3. 
\ No newline at end of file
+This program is licensed under GNU General Public License, Version 3. 
+
+Exceptions are src/notifications/wintoastlib.c and wintoastlib.h, copied from https://github.com/mohabouje/WinToast and licensed under MIT.
\ No newline at end of file