1 files changed, 1 insertions, 1 deletions
diff --git a/py/vm.c b/py/vm.c
index f9a589c9d..5365014fc 100644
--- a/py/vm.c
+++ b/py/vm.c
@@ -312,7 +312,7 @@ dispatch_loop:
                     DISPATCH();
 
                 ENTRY(MP_BC_LOAD_CONST_SMALL_INT): {
-                    mp_int_t num = 0;
+                    mp_uint_t num = 0;
                     if ((ip[0] & 0x40) != 0) {
                         // Number is negative
                         num--;