diff --git a/README.md b/README.md
index afb6c4f75c523265be1253226a5d5eca66af7b49..5736986c3171990e0e8f2867cff1e89f5f8e1c52 100644
--- a/README.md
+++ b/README.md
@@ -33,8 +33,6 @@ And if you want `sudo dnf group install "Development Tools"`.
 
 ### On Linux systems
 
-
-
 Then just type :
 
 ```
@@ -43,7 +41,16 @@ $ make
 
 ## Tests
 
-_Not yet implemented_
+All tests are in the test folder.
+To build unittests, install [criterion](https://criterion.readthedocs.io/en/master/setup.html).
+
+Then just type :
+
+``
+$ make test
+```
+
+You can run the test by running the test/test program.
 
 ## Static analysis