diff --git a/docs/en/Testing.md b/docs/en/Testing.md
index 619aaa2160..0b4543051b 100644
--- a/docs/en/Testing.md
+++ b/docs/en/Testing.md
@@ -122,7 +122,7 @@ namespace MyProject.Issues
                 throw new IssueStateException("You can not open a locked issue!");
             }
 
-            IsClosed = true;
+            IsClosed = false;
             CloseDate = null;
         }
     }