diff --git a/src/SMESHGUI/SMESHGUI_Swig.cxx b/src/SMESHGUI/SMESHGUI_Swig.cxx
index 203db32de..20b00e565 100644
--- a/src/SMESHGUI/SMESHGUI_Swig.cxx
+++ b/src/SMESHGUI/SMESHGUI_Swig.cxx
@@ -299,10 +299,10 @@ SMESH_Swig::SMESH_Swig()
 
   MESSAGE("Constructeur");
 
-  if(!CORBA::is_nil(anORB))
+  if(CORBA::is_nil(anORB))
     ProcessVoidEvent(new TEvent(anORB));
 
-  ASSERT(CORBA::is_nil(anORB));
+  ASSERT(!CORBA::is_nil(anORB));
 }
 
 
@@ -440,7 +440,7 @@ SMESH_Swig::AddNewHypothesis(const char* theIOR)
   CORBA::String_var anEntry = aSObject->GetID();
   return anEntry._retn();
 }
-  
+
 
 //===============================================================
 const char* 
diff --git a/src/SMESH_I/SMESH_MEDMesh_i.cxx b/src/SMESH_I/SMESH_MEDMesh_i.cxx
index bbf959006..d67f7e62d 100644
--- a/src/SMESH_I/SMESH_MEDMesh_i.cxx
+++ b/src/SMESH_I/SMESH_MEDMesh_i.cxx
@@ -1081,7 +1081,7 @@ void SMESH_MEDMesh_i::calculeNbElts() throw(SALOME::SALOME_Exception)
 
 			int nb_of_nodes = elem->NbNodes();
 			medElement = SALOME_MED::MED_HEXA8;
-			ASSERT(nb_of_nodes = 8);
+			ASSERT(nb_of_nodes == 8);
 
 			if (trouveHexa8 == 0)
 			{