diff --git a/cc3200/mpconfigport.h b/cc3200/mpconfigport.h
index 73accda5fc2f20808fb3dcdc41d9199354ebfce3..e7968db30ddd5c168400ca4350288a9ed16c2978 100644
--- a/cc3200/mpconfigport.h
+++ b/cc3200/mpconfigport.h
@@ -48,6 +48,7 @@
 #define MICROPY_FLOAT_IMPL                          (MICROPY_FLOAT_IMPL_NONE)
 #define MICROPY_OPT_COMPUTED_GOTO                   (0)
 #define MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE    (0)
+#define MICROPY_CPYTHON_COMPAT                      (0)
 
 /* Enable FatFS LFNs
     0: Disable LFN feature.