diff --git a/src/tools/device-graph/README.md b/src/tools/device-graph/README.md
index db8c10f96b1c7f..2e484add9a5742 100644
--- a/src/tools/device-graph/README.md
+++ b/src/tools/device-graph/README.md
@@ -55,7 +55,7 @@ added.
 --paa-trust-store-path credentials/production/paa-root-certs
 ```
 
-Once a commissioning is completed for the device, is is possible to rerun the
+Once a commissioning is completed for the device, it is possible to rerun the
 tool again for an already commissioned devices, this is an example of how to do
 so: