diff --git a/README.md b/README.md
index 145d86d..af697de 100644
--- a/README.md
+++ b/README.md
@@ -76,6 +76,7 @@ If you're interested in hacking on the ops and kernels, go ahead and build from
     git clone git@github.com:openai/blocksparse.git
     cd blocksparse
 
+    python generate_kernels.py
     make compile
     pip install dist/*.whl