Index: src/SymTab/Autogen.cc
===================================================================
--- src/SymTab/Autogen.cc	(revision 972e6f723601cda15cf0579d257a4373a83330d4)
+++ src/SymTab/Autogen.cc	(revision 5b40f300c07c8cd0b5d1720f42e535c1f4926bd5)
@@ -80,6 +80,8 @@
 		fExpr->get_args().push_back( dstselect );
 
-		Expression *srcselect = new MemberExpr( member, new VariableExpr( srcParam ) );
-		fExpr->get_args().push_back( srcselect );
+		if ( srcParam ) {
+			Expression *srcselect = new MemberExpr( member, new VariableExpr( srcParam ) );
+			fExpr->get_args().push_back( srcselect );
+		}
 
 		*out++ = new ExprStmt( noLabels, fExpr );