diff --git a/README.md b/README.md
index db8ce94..75eb4b4 100644
--- a/README.md
+++ b/README.md
@@ -29,3 +29,6 @@ TBA
 **"Space"** passes the round<br />
 **"Enter"** plays the cards<br />
 **Arrows** select cards on the carousel
+
+Forked from Romain Durban’s gwent-classic-v4.0:
+https://github.com/romain-durban/gwent-classic-v4.0.git
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