diff --git a/Development.md b/Development.md
index fcc7ce3..ac52404 100644
--- a/Development.md
+++ b/Development.md
@@ -13,7 +13,7 @@ git submodule update --init --recursive --remote
 ```
 ### Update submodule
 ```
-# Pull the submodule new commits at the submodules path and at this repository top level will have:
+# Pull the submodule new commits at the submodules path, and at this repository top level will have:
 git diff
     modified:   source/drivers/li-mt9m021 (new commits)