diff --git a/geom/geom/src/TGeoNode.cxx b/geom/geom/src/TGeoNode.cxx
index c5437e5112e253c3eaac0429c8481c9d1bd4ed1f..9312771ce5fb9cc357def8c60d6d134b0cf0418d 100644
--- a/geom/geom/src/TGeoNode.cxx
+++ b/geom/geom/src/TGeoNode.cxx
@@ -231,7 +231,7 @@ void TGeoNode::CheckOverlaps(Double_t ovlp, Option_t *option)
       TObjArray *overlaps = geom->GetListOfOverlaps();
       Int_t novlps = overlaps->GetEntriesFast();     
       TNamed *obj;
-      for (Int_t i=0; i<novlps; i++) {
+      for (i=0; i<novlps; i++) {
          obj = (TNamed*)overlaps->At(i);
          obj->SetName(Form("ov%05d",i));
       }