diff --git a/CONTRIBUTING.adoc b/CONTRIBUTING.adoc
index be767d575c..2a826b7895 100755
--- a/CONTRIBUTING.adoc
+++ b/CONTRIBUTING.adoc
@@ -163,8 +163,8 @@ then select the root `build.gradle` file to import the code.
 
 Alternatively, you can let IntellIJ IDEA checkout the code for you. Use "`File`" ->
 "`New`" -> "`Project from Version Control`" and
-`https://github.com/spring-projects/spring-boot` for the URL. One the checkout is done, a
-pop-up will suggest to open the project.
+`https://github.com/spring-projects/spring-boot` for the URL. Once the checkout has
+completed, a pop-up will suggest to open the project.