diff --git a/README.md b/README.md
index f3c8d69..4cfbac5 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ To install the library `<lib>` using compiler `<compiler>` and MPI `<mpi>` make
 ```
 To install all libraries with build recipes in `config`:
 ```
-./libinstaller --compiler <compiler> --mpi <mpi> --<lib>
+./libinstaller --compiler <compiler> --mpi <mpi> --all
 ```
 For further supported options and their default values, please have a look at `./libinstaller -h`:
 ```