diff --git a/README.rst b/README.rst
index efe68a2..1f250e6 100644
--- a/README.rst
+++ b/README.rst
@@ -23,7 +23,7 @@ This driver depends on:
 * `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_
 * `Bus Device <https://github.com/adafruit/Adafruit_CircuitPython_BusDevice>`_
 
-Please ensure all dependencies are available on the CircuitPython filesystem.
+Please ensure that all dependencies are available on the CircuitPython filesystem.
 This is easily achieved by downloading
 `the Adafruit library and driver bundle <https://github.com/adafruit/Adafruit_CircuitPython_Bundle>`_.