diff --git a/docs/scenarios/speed.rst b/docs/scenarios/speed.rst
index 7a2ef88..308d27c 100644
--- a/docs/scenarios/speed.rst
+++ b/docs/scenarios/speed.rst
@@ -181,7 +181,7 @@ With the module `pyximport` you are able to import Cython `*.pyx` files, in this
 version of the primes function.
 The `pyximport.install()` command allows the Python interpreter to start the Cython compiler directly to generate C-code,
 which is automatically compiled to a `*.so` C-library. ... and Cython is able to import this library for you in your Python-code.
-Very easy and very efficient. With the `time.time()` function you are able to compare the time between this 2 different calls to find 500 prime numbers.
+Very easy and very efficient. With the `time.time()` function you are able to compare the time between these 2 different calls to find 500 prime numbers.
 
 On a standard notebook (dualcore AMD E-450 1,6 GHz)  the measured values are: