diff --git a/README.md b/README.md
index 743fc8c3a..e23ca6a06 100644
--- a/README.md
+++ b/README.md
@@ -3381,7 +3381,7 @@ wp site delete [<site-id>] [--slug=<slug>] [--yes] [--keep-tables]
 		Answer yes to the confirmation message.
 
 	[--keep-tables]
-		Delete the blog from the list, but don't drop it's tables.
+		Delete the blog from the list, but don't drop its tables.
 
 **EXAMPLES**
 
diff --git a/src/Site_Command.php b/src/Site_Command.php
index 4c2449e83..7ed699d40 100644
--- a/src/Site_Command.php
+++ b/src/Site_Command.php
@@ -316,7 +316,7 @@ public function empty_( $args, $assoc_args ) {
 	 * : Answer yes to the confirmation message.
 	 *
 	 * [--keep-tables]
-	 * : Delete the blog from the list, but don't drop it's tables.
+	 * : Delete the blog from the list, but don't drop its tables.
 	 *
 	 * ## EXAMPLES
 	 *