diff --git a/main.c b/main.c
index f259fea3f9..4d34e451dd 100755
--- a/main.c
+++ b/main.c
@@ -230,7 +230,7 @@ void cleanup_after_vm(supervisor_allocation* heap) {
     free_memory(heap);
     supervisor_move_memory();
 
-    #ifdef CIRCUITPY_CANIO
+    #if CIRCUITPY_CANIO
     common_hal_canio_reset();
     #endif