diff --git a/modules/viz/doc/widget.rst b/modules/viz/doc/widget.rst
index 7c1fc4575..0601ba1b7 100644
--- a/modules/viz/doc/widget.rst
+++ b/modules/viz/doc/widget.rst
@@ -1049,7 +1049,7 @@ viz::WWidgetMerger::WWidgetMerger
 ---------------------------------------
 Constructs a WWidgetMerger.
 
-.. ocv:WWidgetMerger:: WWidgetMerger()
+.. ocv:function:: WWidgetMerger()
 
 viz::WWidgetMerger::addCloud
 -------------------------------