diff --git a/README.md b/README.md
index 80165f1dbd..05cd5336d5 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,8 @@
 
 # rusEFI
 
+See [check.c](https://github.com/rusefi/rusefi/blob/master/firmware/check.c) for recommended version of GCC.
+
 Current binaries are always available on our [build server](http://rusefi.com/build_server/)
 
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