diff --git a/src/portable/nxp/lpc_ip3511/dcd_lpc_ip3511.c b/src/portable/nxp/lpc_ip3511/dcd_lpc_ip3511.c
index 80d85fa46..7825d287f 100644
--- a/src/portable/nxp/lpc_ip3511/dcd_lpc_ip3511.c
+++ b/src/portable/nxp/lpc_ip3511/dcd_lpc_ip3511.c
@@ -244,6 +244,7 @@ static void prepare_setup_packet(uint8_t rhport)
 
 static void edpt_reset(uint8_t rhport, uint8_t ep_id)
 {
+  (void) rhport;
   tu_memclr(&_dcd.ep[ep_id], sizeof(_dcd.ep[ep_id]));
 }