diff --git a/en/02.1.md b/en/02.1.md
index ad0168fc..658fcb0e 100644
--- a/en/02.1.md
+++ b/en/02.1.md
@@ -24,7 +24,7 @@ It prints following information.
 
 One thing that you should know in the first is that Go programs are composed by `package`.
 
-`package<pkgName>` (In this case is `package main`) tells us this source file belongs to `main` package, and the keyword `main` tells us this package will be compiled to a program instead of package files whose extensions are `.a`.
+`package <pkgName>` (In this case is `package main`) tells us this source file belongs to `main` package, and the keyword `main` tells us this package will be compiled to a program instead of package files whose extensions are `.a`.
 
 Every executable program has one and only one `main` package, and you need an entry function called `main` without any arguments or return values in the `main` package.