diff --git a/py/modstruct.c b/py/modstruct.c index 95a282e2ec1746a8bf774d97bf017809a7d4899c..19cf9cfd6c05064486ee0f30f9f27794359c6f70 100644 --- a/py/modstruct.c +++ b/py/modstruct.c @@ -85,7 +85,7 @@ STATIC mp_obj_t struct_calcsize(mp_obj_t fmt_in) { char fmt_type = get_fmt_type(&fmt); machine_uint_t size; for (size = 0; *fmt; fmt++) { - uint align; + uint align = 1; machine_uint_t cnt = 1; if (unichar_isdigit(*fmt)) { cnt = get_fmt_num(&fmt);