diff --git a/modules/calib3d/src/stereosgbm.cpp b/modules/calib3d/src/stereosgbm.cpp
index e27f8e4f8..4c8adb9f9 100644
--- a/modules/calib3d/src/stereosgbm.cpp
+++ b/modules/calib3d/src/stereosgbm.cpp
@@ -99,7 +99,7 @@ StereoSGBM::~StereoSGBM()
 }
 
 /*
- For each pixel row1[x], max(-maxD, 0) <= minX <= x < maxX <= width - max(0, -minD),
+ For each pixel row1[x], max(-maxD, 0) <= minX <= x < maxX <= width - max(0, minD),
  and for each disparity minD<=d<maxD the function
  computes the cost (cost[(x-minX)*(maxD - minD) + (d - minD)]), depending on the difference between
  row1[x] and row2[x-d]. The subpixel algorithm from