Index: src/InitTweak/InitModel.h
===================================================================
--- src/InitTweak/InitModel.h	(revision 2a4b0884c14643e09650daaeb3a6667b5bff6b48)
+++ src/InitTweak/InitModel.h	(revision 8bc4ef87e90fcb9fc6232c6c4e9d2137b79d50b0)
@@ -75,4 +75,5 @@
 			void visit( UntypedOffsetofExpr * ) { throw 0; }
 			void visit( OffsetofExpr * ) { throw 0; }
+			void visit( OffsetPackExpr * ) { throw 0; }
 			void visit( AttrExpr * ) { throw 0; }
 			void visit( LogicalExpr * ) { throw 0; }