diff --git a/README4PACKAGERS b/README4PACKAGERS
index 396e486e..4285f2da 100644
--- a/README4PACKAGERS
+++ b/README4PACKAGERS
@@ -57,7 +57,7 @@ wxPython
 Dependencies for the Libervia frontend
 --------------------------------------
 
-pyjamas
+pyjamas (for building only)
 txJSON-RPC
 
 Recommended: pyOpenSSL