diff --git a/modules/calib3d/src/modelest.cpp b/modules/calib3d/src/modelest.cpp
index b6441e22cb..5140afe99d 100644
--- a/modules/calib3d/src/modelest.cpp
+++ b/modules/calib3d/src/modelest.cpp
@@ -351,7 +351,7 @@ bool CvModelEstimator2::checkSubset( const CvMat* m, int count )
             break;
     }
 
-    return i >= i1;
+    return i > i1;
 }