diff --git a/reowolf.h b/reowolf.h
index d69dc6a358d387e8a833a76b00505786ecda9f7a..192f2ab1b1bb9f3e888527797bc7cf184a2c57d5 100644
--- a/reowolf.h
+++ b/reowolf.h
@@ -31,9 +31,7 @@ typedef uint32_t PortSuffix;
 typedef struct {
   ConnectorId connector_id;
   PortSuffix u32_suffix;
-} Id;
-
-typedef Id PortId;
+} PortId;
 
 /**
  * Given
@@ -87,7 +85,7 @@ void connector_destroy(Connector *connector);
 
 ErrorCode connector_get(Connector *connector, PortId port);
 
-const uint8_t *connector_gotten_bytes(Connector *connector, PortId port, uintptr_t *len);
+const uint8_t *connector_gotten_bytes(Connector *connector, PortId port, uintptr_t *out_len);
 
 /**
  * Initializes `out` with a new connector using the given protocol description as its configuration.