diff --git a/README.md b/README.md
index 4db31550529e9ffa6560398249550c1135048ec3..3f49b0905465c347617cf8ac86e5090e90401ddd 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ Manipulated objects are imported from numpy and scipy. Matrices should be stored
 
 ### Testing the interface
 
-- From the command line (in the project root directory):
+- From the command line (to be called from the project root directory):
 ```bash
 python tests/test_spams.py -h       # print the man page
 python tests/test_spams.py          # run all the tests
@@ -65,6 +65,12 @@ test_spams(['sort', 'calcAAt'])     # run specific tests
 test_spams(python_exec='python3')   # specify the python exec
 ```
 
+- From the command line (assuming `spams` package is installed):
+```bash
+# c.f. previous point for the different options
+python -c "from spams.tests import test_spams; test_spams()"
+```
+
 ---
 
 ## Links