diff --git a/doc/design/scope.md b/doc/design/scope.md
index a255b361d0790655ec7bb04520910ba9ef1e225d..dec033ad63273963d0d2d43b94191a19e9847937 100644
--- a/doc/design/scope.md
+++ b/doc/design/scope.md
@@ -29,7 +29,7 @@ Scope is used to provide a running environment for Net.
 
 1. Every variable only belongs to one certain Scope.
 
-    Variable can not be shared between nets, if we want to use variables from different scope we can use `Parent scope`.
+    Variable can not be shared between scopes, if we want to use variables from different scope we can use `Parent scope`.
 
 1. Scope should destruct all Variables within it when itself is destructed.