diff --git a/modules/core/doc/basic_structures.rst b/modules/core/doc/basic_structures.rst
index 048ee7e71a..db4e015b94 100644
--- a/modules/core/doc/basic_structures.rst
+++ b/modules/core/doc/basic_structures.rst
@@ -285,7 +285,7 @@ In addition to the class members, the following operations on rectangles are imp
 
 * ``rect = rect1 & rect2``     (rectangle intersection)
 
-* ``rect = rect1 | rect2``     (minimum area rectangle containing ``rect2``     and ``rect3``     )
+* ``rect = rect1 | rect2``     (minimum area rectangle containing ``rect1``     and ``rect2``     )
 
 * ``rect &= rect1, rect |= rect1``     (and the corresponding augmenting operations)
 
diff --git a/modules/core/include/opencv2/core/types.hpp b/modules/core/include/opencv2/core/types.hpp
index 2ea9f0d7a7..e166556af7 100644
--- a/modules/core/include/opencv2/core/types.hpp
+++ b/modules/core/include/opencv2/core/types.hpp
@@ -356,7 +356,7 @@ In addition to the class members, the following operations on rectangles are imp
     certain amount)
 -   rect += point, rect -= point, rect += size, rect -= size (augmenting operations)
 -   rect = rect1 & rect2 (rectangle intersection)
--   rect = rect1 | rect2 (minimum area rectangle containing rect2 and rect3 )
+-   rect = rect1 | rect2 (minimum area rectangle containing rect1 and rect2 )
 -   rect &= rect1, rect |= rect1 (and the corresponding augmenting operations)
 -   rect == rect1, rect != rect1 (rectangle comparison)