diff --git a/fr.centralesupelec.edf.riseclipse.iec61850.scl.tools/src/fr/centralesupelec/edf/riseclipse/iec61850/scl/validator/RiseClipseValidatorSCL.java b/fr.centralesupelec.edf.riseclipse.iec61850.scl.tools/src/fr/centralesupelec/edf/riseclipse/iec61850/scl/validator/RiseClipseValidatorSCL.java
index 3a7a44fed296d090a9d585fdd7c5253c4426f21c..b021b9ee0bd6b78a7b1e25775970142c5bee3ea7 100644
--- a/fr.centralesupelec.edf.riseclipse.iec61850.scl.tools/src/fr/centralesupelec/edf/riseclipse/iec61850/scl/validator/RiseClipseValidatorSCL.java
+++ b/fr.centralesupelec.edf.riseclipse.iec61850.scl.tools/src/fr/centralesupelec/edf/riseclipse/iec61850/scl/validator/RiseClipseValidatorSCL.java
@@ -77,6 +77,7 @@ public class RiseClipseValidatorSCL {
         boolean makeExplicitLinks = false;
         boolean useColor = false;
         boolean displayCopyright = true;
+        boolean displayNsdMessages = false;
         
         int consoleLevel = IRiseClipseConsole.WARNING_LEVEL;
 
@@ -102,6 +103,9 @@ public class RiseClipseValidatorSCL {
                 else if( "--do-not-display-copyright".equals( args[i] ) ) {
                     displayCopyright = false;
                 }
+                else if( "--display-nsd-messages".equals( args[i] ) ) {
+                    displayNsdMessages = true;
+                }
                 else {
                     console = new TextRiseClipseConsole( useColor );
                     console.error( "Unrecognized option " + args[i] );
@@ -138,7 +142,7 @@ public class RiseClipseValidatorSCL {
             }
         }
 
-        prepare( oclFiles, nsdFiles );
+        prepare( oclFiles, nsdFiles, displayNsdMessages );
         for( int i = 0; i < sclFiles.size(); ++i ) {
             run( makeExplicitLinks, sclFiles.get( i ));
         }
@@ -165,7 +169,7 @@ public class RiseClipseValidatorSCL {
         console.info( "" );
     }
 
-    private static void prepare( ArrayList< @NonNull String > oclFiles, ArrayList< @NonNull String > nsdFiles ) {
+    private static void prepare( ArrayList< @NonNull String > oclFiles, ArrayList< @NonNull String > nsdFiles, boolean displayNsdMessages ) {
         SclPackage sclPg = SclPackage.eINSTANCE;
         if( sclPg == null ) {
             throw new RiseClipseFatalException( "SCL package not found", null );
@@ -187,7 +191,7 @@ public class RiseClipseValidatorSCL {
             for( int i = 0; i < nsdFiles.size(); ++i ) {
                 nsdValidator.addNsdDocument( nsdFiles.get( i ), console );
             }
-            nsdValidator.prepare( validator, console );
+            nsdValidator.prepare( validator, console, displayNsdMessages );
         }
 
         sclLoader = new SclModelLoader( console );
diff --git a/fr.centralesupelec.edf.riseclipse.iec61850.scl.tools/src/fr/centralesupelec/edf/riseclipse/iec61850/scl/validator/nsd/NsdValidator.java b/fr.centralesupelec.edf.riseclipse.iec61850.scl.tools/src/fr/centralesupelec/edf/riseclipse/iec61850/scl/validator/nsd/NsdValidator.java
index e5e538fc3761b56620e0d13fb9953a47062cbd96..fbc61f56f66d4f1f4f9a4ddabe5a9d0d35fa30a8 100644
--- a/fr.centralesupelec.edf.riseclipse.iec61850.scl.tools/src/fr/centralesupelec/edf/riseclipse/iec61850/scl/validator/nsd/NsdValidator.java
+++ b/fr.centralesupelec.edf.riseclipse.iec61850.scl.tools/src/fr/centralesupelec/edf/riseclipse/iec61850/scl/validator/nsd/NsdValidator.java
@@ -38,11 +38,18 @@ public class NsdValidator {
         nsdLoader.load( nsdFile );
     }
     
-    public void prepare( @NonNull ComposedEValidator validator, IRiseClipseConsole console ) {
+    public void prepare( @NonNull ComposedEValidator validator, IRiseClipseConsole console, boolean displayNsdMessages ) {
+        int level = 0;
+        if( ! displayNsdMessages ) {
+            level = console.setLevel( IRiseClipseConsole.ERROR_LEVEL );            
+        }
         nsdLoader.getResourceSet().finalizeLoad( console );
         NsdEObjectValidator nsdEObjectValidator = new NsdEObjectValidator( nsdLoader.getResourceSet() );
         nsdEObjectValidator.initializeValidationData();
         validator.addChild( nsdEObjectValidator );
+        if( ! displayNsdMessages ) {
+            console.setLevel( level );            
+        }
     }
 
 }