diff --git a/README.md b/README.md
index 8babc9d..c6cffe3 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,2 @@
 # csources_v2
-CSources compiled from Nim version 2.
+CSources compiled from Nim version 2. Based on https://github.com/nim-lang/Nim/commit/f01ffbf6f1f66f0b3e525589d473cad2cbd951f1