diff --git a/modules/calib3d/src/checkchessboard.cpp b/modules/calib3d/src/checkchessboard.cpp
index 5f954617d..88c6baf10 100644
--- a/modules/calib3d/src/checkchessboard.cpp
+++ b/modules/calib3d/src/checkchessboard.cpp
@@ -61,8 +61,8 @@ int cvCheckChessboardBinary(IplImage* src, CvSize size);
 
 static void icvGetQuadrangleHypotheses(CvSeq* contours, std::vector<std::pair<float, int> >& quads, int class_id)
 {
-    const float min_aspect_ratio = 0.2f;
-    const float max_aspect_ratio = 5.0f;
+    const float min_aspect_ratio = 0.3f;
+    const float max_aspect_ratio = 3.0f;
     const float min_box_size = 10.0f;
 
     for(CvSeq* seq = contours; seq != NULL; seq = seq->h_next)