diff --git a/src/DriverMED/DriverMED_R_SMESHDS_Mesh.cxx b/src/DriverMED/DriverMED_R_SMESHDS_Mesh.cxx
index a60b77ca9..35caa0286 100644
--- a/src/DriverMED/DriverMED_R_SMESHDS_Mesh.cxx
+++ b/src/DriverMED/DriverMED_R_SMESHDS_Mesh.cxx
@@ -205,7 +205,7 @@ DriverMED_R_SMESHDS_Mesh
                 aNodeIds.resize( aNbBalls );
                 for(TInt iBall = 0; iBall < aNbBalls && anIsNodeNum; iBall++)
                 {
-                  aNodeIds[iBall] = aNodeInfo->GetElemNum(iBall);
+                  aNodeIds[iBall] = aNodeInfo->GetElemNum( (*aBallInfo->myConn)[ iBall ]-1 );
                   anIsNodeNum = myMesh->FindNode( aNodeIds[iBall] ) ? eVRAI : eFAUX;
                 }
               }
diff --git a/src/DriverMED/DriverMED_W_SMESHDS_Mesh.cxx b/src/DriverMED/DriverMED_W_SMESHDS_Mesh.cxx
index 39b03f2d6..9d1bf4adf 100644
--- a/src/DriverMED/DriverMED_W_SMESHDS_Mesh.cxx
+++ b/src/DriverMED/DriverMED_W_SMESHDS_Mesh.cxx
@@ -411,7 +411,7 @@ Driver_Mesh::Status DriverMED_W_SMESHDS_Mesh::Perform()
     if (myDoGroupOfFaces && nbFaces) myFacesDefaultFamilyId = REST_FACES_FAMILY;
     if (myDoGroupOfVolumes && nbVolumes) myVolumesDefaultFamilyId = REST_VOLUMES_FAMILY;
     if (myDoGroupOf0DElems && nb0DElements) my0DElementsDefaultFamilyId = REST_0DELEM_FAMILY;
-    if (myDoGroupOfVolumes && nbVolumes) myBallsDefaultFamilyId = REST_BALL_FAMILY;
+    if (myDoGroupOfBalls && nbBalls) myBallsDefaultFamilyId = REST_BALL_FAMILY;
 
     MESSAGE("Perform - aFamilyInfo");
     //cout << " DriverMED_Family::MakeFamilies() " << endl;