Use qstr id to create sys module.
diff --git a/py/qstrdefs.h b/py/qstrdefs.h
index 7efa85b..bf575e2 100644
--- a/py/qstrdefs.h
+++ b/py/qstrdefs.h
@@ -81,6 +81,7 @@
Q(sorted)
Q(sum)
Q(str)
+Q(sys)
Q(tuple)
Q(type)
Q(zip)
diff --git a/py/runtime.c b/py/runtime.c
index 0f27273..c84a28e 100644
--- a/py/runtime.c
+++ b/py/runtime.c
@@ -168,7 +168,7 @@
#if MICROPY_CPYTHON_COMPAT
// Precreate sys module, so "import sys" didn't throw exceptions.
- mp_obj_new_module(QSTR_FROM_STR_STATIC("sys"));
+ mp_obj_new_module(MP_QSTR_sys);
#endif
mp_module_micropython_init();
diff --git a/unix/qstrdefsport.h b/unix/qstrdefsport.h
index a470e5d..598f23b 100644
--- a/unix/qstrdefsport.h
+++ b/unix/qstrdefsport.h
@@ -1,6 +1,5 @@
// qstrs specific to this port
-Q(sys)
Q(argv)
Q(open)
Q(stdin)
diff --git a/windows/qstrdefsport.h b/windows/qstrdefsport.h
index 8a4c47f..3c69a1c 100644
--- a/windows/qstrdefsport.h
+++ b/windows/qstrdefsport.h
@@ -1,6 +1,5 @@
// qstrs specific to this port
-Q(sys)
Q(argv)
Q(open)
Q(stdin)