diff --git a/py/circuitpy_mpconfig.h b/py/circuitpy_mpconfig.h
index 4b23784c5416c..381cb9538e4bb 100644
--- a/py/circuitpy_mpconfig.h
+++ b/py/circuitpy_mpconfig.h
@@ -262,6 +262,10 @@ typedef long mp_off_t;
 #define MICROPY_PY_COLLECTIONS_DEQUE_SUBSCR   (CIRCUITPY_FULL_BUILD)
 #endif
 
+#ifndef MICROPY_PY_DELATTR_SETATTR
+#define MICROPY_PY_DELATTR_SETATTR       (CIRCUITPY_FULL_BUILD)
+#endif
+
 #ifndef MICROPY_PY_DOUBLE_TYPECODE
 #define MICROPY_PY_DOUBLE_TYPECODE       (CIRCUITPY_FULL_BUILD ? 1 : 0)
 #endif