diff --git a/ports/stm/common-hal/canio/Listener.c b/ports/stm/common-hal/canio/Listener.c
index dd968979d2..09456d39dd 100644
--- a/ports/stm/common-hal/canio/Listener.c
+++ b/ports/stm/common-hal/canio/Listener.c
@@ -32,6 +32,7 @@
 
 #include "common-hal/canio/__init__.h"
 #include "common-hal/canio/Listener.h"
+#include "shared-bindings/canio/Listener.h"
 #include "shared-bindings/util.h"
 #include "supervisor/shared/tick.h"
 #include "supervisor/shared/safe_mode.h"
diff --git a/ports/stm/common-hal/canio/Listener.h b/ports/stm/common-hal/canio/Listener.h
index 2e17788888..2d0e302e9f 100644
--- a/ports/stm/common-hal/canio/Listener.h
+++ b/ports/stm/common-hal/canio/Listener.h
@@ -37,11 +37,3 @@ typedef struct canio_listener_obj {
     uint32_t timeout_ms;
     uint8_t fifo_idx;
 } canio_listener_obj_t;
-
-void common_hal_canio_listener_construct(canio_listener_obj_t *self, canio_can_obj_t *can, size_t nmatch, canio_match_obj_t **matches, float timeout);
-void common_hal_canio_listener_check_for_deinit(canio_listener_obj_t *self);
-void common_hal_canio_listener_deinit(canio_listener_obj_t *self);
-bool common_hal_canio_listener_receiveinto(canio_listener_obj_t *self, canio_message_obj_t *message);
-int common_hal_canio_listener_in_waiting(canio_listener_obj_t *self);
-float common_hal_canio_listener_get_timeout(canio_listener_obj_t *self);
-void common_hal_canio_listener_set_timeout(canio_listener_obj_t *self, float timeout);