diff --git a/db/category.go b/db/category.go
index 67f4d24..9b73696 100644
--- a/db/category.go
+++ b/db/category.go
@@ -17,7 +17,7 @@ type Category struct {
 }
 
 var (
-	ERROR_CATEGORY_PARENT_NOT_FOUND  = errors.New("ParentID is invalid for user")
+	ERROR_CATEGORY_PARENT_NOT_FOUND  = errors.New("Can't find Category with ParentID for user")
 	ERROR_CATEGORY_NAME_NOT_UNIQUE   = errors.New("Name for Category have to be unique for user")
 	ERROR_CATEGORY_USER_ID_NOT_EQUAL = errors.New("ParentID is invalid for user")
 )