diff --git a/modules/calib3d/include/opencv2/calib3d.hpp b/modules/calib3d/include/opencv2/calib3d.hpp
index 3e6ab372b0..a79e8208b1 100644
--- a/modules/calib3d/include/opencv2/calib3d.hpp
+++ b/modules/calib3d/include/opencv2/calib3d.hpp
@@ -2360,7 +2360,7 @@ W
 x \\
 y \\
 \texttt{disparity} (x,y) \\
-z
+1
 \end{bmatrix}.\f]
 
 @sa