diff --git a/src/GEOMUtils/GEOMUtils_ShapeStatistics.cxx b/src/GEOMUtils/GEOMUtils_ShapeStatistics.cxx
index 37b5f6b2c..4ef3b8658 100644
--- a/src/GEOMUtils/GEOMUtils_ShapeStatistics.cxx
+++ b/src/GEOMUtils/GEOMUtils_ShapeStatistics.cxx
@@ -83,7 +83,7 @@ namespace GEOMUtils
       // keep measures to distribute it
       measures[shift+index] = aMeasure;
     }
-    shift += aNbS;
+    shift += aSubShapesMap.Extent();
   }
   return measures;
 }