diff --git a/src/blackmisc/logcategorylist.h b/src/blackmisc/logcategorylist.h
index c5cca55a3..0692481b8 100644
--- a/src/blackmisc/logcategorylist.h
+++ b/src/blackmisc/logcategorylist.h
@@ -41,6 +41,9 @@ namespace BlackMisc
         //! Empty constructor.
         CLogCategoryList() = default;
 
+        //! By single element
+        CLogCategoryList(const CLogCategory &category) { this->push_back(category); }
+
         //! Copy constructor.
         CLogCategoryList(const CLogCategoryList &) = default;