diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPNamespace.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPNamespace.java
index 16b5121d311..6f99d1cc86f 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPNamespace.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPNamespace.java
@@ -38,6 +38,7 @@ import org.eclipse.cdt.core.parser.util.ArrayUtil;
 import org.eclipse.cdt.core.parser.util.CharArrayUtils;
 import org.eclipse.cdt.core.parser.util.ObjectSet;
 import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
+import org.eclipse.cdt.internal.core.dom.parser.ProblemBinding;
 import org.eclipse.core.runtime.PlatformObject;
 
 /**
@@ -54,6 +55,26 @@ public class CPPNamespace extends PlatformObject implements ICPPNamespace, ICPPI
 		public IBinding[] getMemberBindings() throws DOMException {
 			return ((ICPPNamespace)getBinding()).getMemberBindings();
 		}
+    }
+    public static class CPPNamespaceProblem extends ProblemBinding implements ICPPNamespace{
+        public CPPNamespaceProblem( IASTNode node, int id, char[] arg ) {
+            super( node, id, arg );
+        }
+		public ICPPNamespaceScope getNamespaceScope() throws DOMException {
+			throw new DOMException(this);
+		}
+		public IBinding[] getMemberBindings() throws DOMException {
+			throw new DOMException(this);
+		}
+		public String[] getQualifiedName() throws DOMException {
+			throw new DOMException(this);
+		}
+		public char[][] getQualifiedNameCharArray() throws DOMException {
+			throw new DOMException(this);
+		}
+		public boolean isGloballyQualified() throws DOMException {
+			throw new DOMException(this);
+		}
     }
 	private static final char[] EMPTY_CHAR_ARRAY = { };
 	
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPVisitor.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPVisitor.java
index 0b9651610f3..87c3035ad23 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPVisitor.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPVisitor.java
@@ -436,7 +436,11 @@ public class CPPVisitor {
 		        binding = scope.getBinding( alias.getAlias(), false );
 		        if( binding == null ){
 		            IBinding namespace = alias.getMappingName().resolveBinding();
-		            if( namespace instanceof ICPPNamespace ){
+		            if( namespace instanceof IProblemBinding ){
+		            	IProblemBinding problem = (IProblemBinding) namespace;
+		            	namespace = new CPPNamespace.CPPNamespaceProblem( problem.getASTNode(), problem.getID(), alias.getMappingName().toCharArray());
+		            }
+		            if( namespace instanceof ICPPNamespace ) { 
 		                binding = new CPPNamespaceAlias( alias.getAlias(), (ICPPNamespace) namespace );
 		                scope.addName( alias.getAlias() );
 		            } else {