diff --git a/src/skrepl/skreplxx.cpp b/src/skrepl/skreplxx.cpp
index df6be29d..6d68fb32 100644
--- a/src/skrepl/skreplxx.cpp
+++ b/src/skrepl/skreplxx.cpp
@@ -9,6 +9,9 @@
 #include <xo/facet/FacetRegistry.hpp>
 #include <replxx.hxx>
 #include <iostream>
+#ifdef __APPLE__
+#include <unistd.h> // for STDIN_FILENO on OSX
+#endif
 
 namespace xo {
     using xo::scm::VirtualSchematikaMachine;
@@ -85,7 +88,7 @@ namespace xo {
 
         AppConfig(const ReplConfig & repl_cfg = ReplConfig(),
                   const ArenaConfig & app_arena_cfg = ArenaConfig().with_name("skreplxx").with_size(16 * 1024),
-                  const VsmConfig & vsm_cfg = VsmConfig()) 
+                  const VsmConfig & vsm_cfg = VsmConfig())
         : repl_config_{repl_cfg}, app_arena_config_{app_arena_cfg}, vsm_config_{vsm_cfg}
         {
             //rdr_config_.reader_debug_flag_ = true;
@@ -239,4 +242,3 @@ main (int argc, char * argv[])
 } /*main*/
 
 /* end skreplxx.cpp */
-
diff --git a/utest/VirtualSchematikaMachine.test.cpp b/utest/VirtualSchematikaMachine.test.cpp
index 77b3a30b..75726b72 100644
--- a/utest/VirtualSchematikaMachine.test.cpp
+++ b/utest/VirtualSchematikaMachine.test.cpp
@@ -73,8 +73,8 @@ namespace xo {
                 };
 
                 aux_mm_.arena_.visit_pools(visitor);
-                FacetRegistry::instance().visit_pools(visitor);
                 TypeRegistry::instance().visit_pools(visitor);
+                FacetRegistry::instance().visit_pools(visitor);
                 vsm_.visit_pools(visitor);
 
                 return true;
@@ -189,6 +189,37 @@ namespace xo {
             log && vsm_fixture.log_memory_layout(&log);
         }
 
+        TEST_CASE("VirtualSchematikaMachine-arith2", "[interpreter2][VSM]")
+        {
+            const auto & testname = Catch::getResultCapture().getCurrentTestName();
+
+            constexpr bool c_debug_flag = true;
+            scope log(XO_DEBUG(c_debug_flag), xtag("test", testname));
+
+            VsmFixture vsm_fixture(testname, c_debug_flag);
+            auto & vsm = vsm_fixture.vsm_;
+
+            bool eof_flag = false;
+
+            vsm.begin_interactive_session();
+            VsmResultExt res = vsm.read_eval_print(span_type::from_cstr("3.14159265 / 0.5;"), eof_flag);
+
+            REQUIRE(res.is_value());
+            REQUIRE(res.value());
+
+            log && log(xtag("res.tseq", res.value()->_typeseq()));
+
+            auto x = obj<AGCObject,DFloat>::from(*res.value());
+
+            REQUIRE(x);
+            REQUIRE(x.data()->value() == 6.2831853);
+
+            REQUIRE(res.remaining_.size() == 1);
+            REQUIRE(*res.remaining_.lo() == '\n');
+
+            log && vsm_fixture.log_memory_layout(&log);
+        }
+
         TEST_CASE("VirtualSchematikaMachine-cmp1", "[interpreter2][VSM]")
         {
             const auto & testname = Catch::getResultCapture().getCurrentTestName();