diff --git a/README.md b/README.md
index 069039a..43388d0 100644
--- a/README.md
+++ b/README.md
@@ -217,7 +217,7 @@ sudo apt-get install libssl-dev gcc -y
 ### CUDA Kernels
 
 The custom CUDA kernels are only tested on NVIDIA A100s. If you have any installation or runtime issues, you can remove 
-the kernels by using the `BUILD_EXTENSIONS=False` environment variable.
+the kernels by using the `DISABLE_CUSTOM_KERNELS=True` environment variable.
 
 Be aware that the official Docker image has them enabled by default.