1 files changed, 1 insertions, 1 deletions
diff --git a/README.mkd b/README.mkd
index 8f9574fc..aa0d7fd7 100644
--- a/README.mkd
+++ b/README.mkd
@@ -19,7 +19,7 @@ system:
     // required, this must send a single CAN message with the given arbitration
     // ID (i.e. the CAN message ID) and data. The size will never be more than 8
     // bytes.
-    bool send_can(const uint16_t arbitration_id, const uint8_t* data,
+    bool send_can(const uint32_t arbitration_id, const uint8_t* data,
             const uint8_t size) {
         ...
     }