diff --git a/ports/windows/mpconfigport.h b/ports/windows/mpconfigport.h
index e41f2ebbe0..1ae20fb04d 100644
--- a/ports/windows/mpconfigport.h
+++ b/ports/windows/mpconfigport.h
@@ -41,6 +41,7 @@
 #define MICROPY_COMP_RETURN_IF_EXPR (1)
 #define MICROPY_ENABLE_GC           (1)
 #define MICROPY_ENABLE_FINALISER    (1)
+#define MICROPY_ENABLE_PYSTACK      (1)
 #define MICROPY_STACK_CHECK         (1)
 #define MICROPY_MALLOC_USES_ALLOCATED_SIZE (1)
 #define MICROPY_MEM_STATS           (1)
@@ -56,6 +57,7 @@
 #define MICROPY_FLOAT_IMPL          (MICROPY_FLOAT_IMPL_DOUBLE)
 #define MICROPY_LONGINT_IMPL        (MICROPY_LONGINT_IMPL_MPZ)
 #define MICROPY_STREAMS_NON_BLOCK   (1)
+#define MICROPY_STREAMS_POSIX_API   (1)
 #define MICROPY_OPT_COMPUTED_GOTO   (0)
 #define MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE (1)
 #define MICROPY_CAN_OVERRIDE_BUILTINS (1)
@@ -73,6 +75,7 @@
 #define MICROPY_PY_BUILTINS_POW3    (1)
 #define MICROPY_PY_MICROPYTHON_MEM_INFO (1)
 #define MICROPY_PY_ALL_SPECIAL_METHODS (1)
+#define MICROPY_PY_REVERSE_SPECIAL_METHODS (1)
 #define MICROPY_PY_ARRAY_SLICE_ASSIGN (1)
 #define MICROPY_PY_BUILTINS_SLICE_ATTRS (1)
 #define MICROPY_PY_SYS_EXIT         (1)
@@ -109,9 +112,12 @@
 #define MICROPY_MACHINE_MEM_GET_WRITE_ADDR  mod_machine_mem_get_addr
 
 #define MICROPY_ERROR_REPORTING     (MICROPY_ERROR_REPORTING_DETAILED)
+#define MICROPY_ERROR_PRINTER       (&mp_stderr_print)
 #define MICROPY_WARNINGS            (1)
 #define MICROPY_PY_STR_BYTES_CMP_WARN (1)
 
+extern const struct _mp_print_t mp_stderr_print;
+
 #ifdef _MSC_VER
 #define MICROPY_GCREGS_SETJMP       (1)
 #endif