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-rw-r--r--ports/stm32/wdt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ports/stm32/wdt.c b/ports/stm32/wdt.c
index 0759ed8e3..3cfbd7f2e 100644
--- a/ports/stm32/wdt.c
+++ b/ports/stm32/wdt.c
@@ -37,7 +37,7 @@ typedef struct _pyb_wdt_obj_t {
mp_obj_base_t base;
} pyb_wdt_obj_t;
-STATIC pyb_wdt_obj_t pyb_wdt = {{&pyb_wdt_type}};
+STATIC const pyb_wdt_obj_t pyb_wdt = {{&pyb_wdt_type}};
STATIC mp_obj_t pyb_wdt_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
// parse arguments