diff --git a/README.md b/README.md
index aa05e6bb56b2aba3a4ddd3755f0576eacc5f0c7f..445ea5a1f9f20e1d9a3d530c4453c562062886b0 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,8 @@ pip install lbmpy[interactive]
 Without `[interactive]` you get a minimal version with very little dependencies.
 
 All options:
--  `gpu`: use this if nVidia GPU is available and CUDA is installed
+- `gpu`: use this if nVidia GPU is available and CUDA is installed
+- `opencl`: use this to enable the target `opencl` (execution using OpenCL)
 - `alltrafos`: pulls in additional dependencies for loop simplification e.g. libisl
 - `interactive`: installs dependencies to work in Jupyter including image I/O, plotting etc.