diff --git a/README.md b/README.md
index 9b0a13fb2..877273277 100644
--- a/README.md
+++ b/README.md
@@ -133,7 +133,7 @@ $ make install
 ```
 $ cd utils
 $ make
-$ make check
+$ make check PYFLAKES=/usr/bin/pyflakes3
 $ make install
 ```