diff --git a/Solver/groupOfElements.h b/Solver/groupOfElements.h
index db8f6e0421fdc64d600509a173310897ab768594..620d8ccb77307ea4c8819b4f371df83973ad0869 100644
--- a/Solver/groupOfElements.h
+++ b/Solver/groupOfElements.h
@@ -124,7 +124,7 @@ class groupOfLagMultElements : public groupOfElements
   groupOfLagMultElements(int dim, int physical, std::vector < groupOfElements *>  sElem) : groupOfElements()
   {
     groupOfElements  pElem(dim , physical);
-    for (unsigned int i;i < sElem.size() ; i ++)
+    for (unsigned int i = 0 ;i < sElem.size() ; i ++)
     {
      fillElementContainer(pElem,(*sElem[i]));
     }