diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPEvaluation.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPEvaluation.java
index d9144c8f84a..be9b4d90b20 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPEvaluation.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPEvaluation.java
@@ -172,6 +172,10 @@ public abstract class CPPEvaluation implements ICPPEvaluation {
 	 */
 	protected static ICPPEvaluation maybeApplyConversion(ICPPEvaluation argument, IType targetType,
 			boolean allowContextualConversion) {
+		if (targetType == null) {
+			return argument;
+		}
+		
 		IType type = argument.getType();
 		
 		// Types match - don't bother to check for conversions.