diff --git a/src/MEDWrapper/MED_Factory.cxx b/src/MEDWrapper/MED_Factory.cxx
index 12c0f597a..c6d62d253 100644
--- a/src/MEDWrapper/MED_Factory.cxx
+++ b/src/MEDWrapper/MED_Factory.cxx
@@ -211,7 +211,7 @@ namespace MED
     if (!CheckCompatibility(fileName)) {
       EXCEPTION(std::runtime_error, "Cannot open file '"<<fileName<<"'.");
     }
-    return new MED::TWrapper(fileName);
+    return new MED::TWrapper(fileName, false);
   }
 
   PWrapper CrWrapperW(const std::string& fileName, int theVersion)
@@ -251,6 +251,6 @@ namespace MED
           CreateEmptyMEDFile(fileName, theVersion);
       }
     }
-    return new MED::TWrapper(fileName, minor);
+    return new MED::TWrapper(fileName, true, minor);
   }
 }
diff --git a/src/MEDWrapper/MED_Wrapper.cxx b/src/MEDWrapper/MED_Wrapper.cxx
index 117ab89f6..157f98342 100644
--- a/src/MEDWrapper/MED_Wrapper.cxx
+++ b/src/MEDWrapper/MED_Wrapper.cxx
@@ -187,23 +187,20 @@ namespace MED
 
   //---------------------------------------------------------------
   TWrapper
-  ::TWrapper(const std::string& theFileName, TInt theMinor):
+  ::TWrapper(const std::string& theFileName, bool write, TInt theMinor):
     myFile(new TFile(theFileName, theMinor)),
     myMinor(theMinor)
   {
     TErr aRet;
-    myFile->Open(eLECTURE_ECRITURE, &aRet);
-    // if (aRet < 0)
-    //   myFile->Close();
-    //   myFile->Open(eLECTURE_AJOUT, &aRet);
-    // }
-    if (aRet < 0) {
-      myFile->Close();
-      myFile->Open(eLECTURE, &aRet);
+    if ( write ) {
+      myFile->Open(eLECTURE_ECRITURE, &aRet);
+      if (aRet < 0) {
+	myFile->Close();
+	myFile->Open(eCREATION, &aRet);
+      }
     }
-    if (aRet < 0) {
-      myFile->Close();
-      myFile->Open(eCREATION, &aRet);
+    else {
+      myFile->Open(eLECTURE, &aRet);
     }
   }
 
diff --git a/src/MEDWrapper/MED_Wrapper.hxx b/src/MEDWrapper/MED_Wrapper.hxx
index 7acbf4ce0..e236f206c 100644
--- a/src/MEDWrapper/MED_Wrapper.hxx
+++ b/src/MEDWrapper/MED_Wrapper.hxx
@@ -52,7 +52,7 @@ namespace MED
     TWrapper& operator=(const TWrapper&);
 
   public:
-    TWrapper(const std::string& theFileName, TInt theVersion=-1);
+    TWrapper(const std::string& theFileName, bool write, TInt theVersion=-1);
 
     virtual
     ~TWrapper();