diff --git a/modules/calib3d/include/opencv2/calib3d.hpp b/modules/calib3d/include/opencv2/calib3d.hpp
index 65beca3283..f22c1114b2 100644
--- a/modules/calib3d/include/opencv2/calib3d.hpp
+++ b/modules/calib3d/include/opencv2/calib3d.hpp
@@ -2983,7 +2983,7 @@ W
 x \\
 y \\
 \texttt{disparity} (x,y) \\
-z
+1
 \end{bmatrix}.\f]
 
 @sa