diff --git a/README.md b/README.md
index 55d160e..50eb9dc 100644
--- a/README.md
+++ b/README.md
@@ -4,8 +4,9 @@ A dependency for Metastable Baselines, that implements the Projection Layers.
 
 ## Installation
 
-#### Install dependency: cpp_projection
-Install [ITPAL (cpp_projection)](https://github.com/ALRhub/ITPAL)
+#### (optional) Install dependency: cpp_projection
+Install [ITPAL (cpp_projection)](https://github.com/ALRhub/ITPAL).  
+This is required if you wish to use KL projections (Wasserstein and Frobenius work without)
 
 #### Install as a package
 Then install this repo as a package: