Index: src/ControlStruct/TranslateEnumRange.cpp
===================================================================
--- src/ControlStruct/TranslateEnumRange.cpp	(revision 6d2b3dcd9e518ea112923a8e83105ce7a4a77fd6)
+++ src/ControlStruct/TranslateEnumRange.cpp	(revision 0c327cee778443a440104253db33557cee4d2a92)
@@ -81,5 +81,5 @@
             ast::UntypedExpr::createCall( location, "upperBound", {} )  });
     auto increment = ast::UntypedExpr::createCall( location, 
-        stmt->is_inc? "succ": "pred",
+        stmt->is_inc? "succ_unsafe": "pred_unsafe",
         { new ast::NameExpr( location, indexName ) });
     auto assig = ast::UntypedExpr::createAssign( location, new ast::NameExpr( location, indexName ), increment );