diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPSemantics.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPSemantics.java
index e04f136cf0f..70c0844eb82 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPSemantics.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPSemantics.java
@@ -2644,9 +2644,8 @@ public class CPPSemantics {
 	
 	static private boolean isCompleteType( IType type ){
 		type = getUltimateType( type, false );
-		if( type instanceof ICPPClassType && ((ICPPInternalBinding)type).getDefinition() == null ){
-			return false;
-		}
+		if( type instanceof ICPPClassType && type instanceof ICPPInternalBinding )
+			return (((ICPPInternalBinding)type).getDefinition() != null );
 		return true;
 	}
 	static private Cost lvalue_to_rvalue( IType source, IType target ) throws DOMException{