diff --git a/src/modules/module-adapter/adapter.c b/src/modules/module-adapter/adapter.c
index d279c5d93..97c7fa67e 100644
--- a/src/modules/module-adapter/adapter.c
+++ b/src/modules/module-adapter/adapter.c
@@ -46,9 +46,6 @@
 
 #define NAME "adapter"
 
-#define PORT_BUFFERS	1
-#define MAX_BUFFER_SIZE	2048
-
 struct buffer {
 	struct spa_buffer buf;
 	struct spa_data datas[1];