diff --git a/example/a2dp_sink_demo.c b/example/a2dp_sink_demo.c
index 9c147c63c..d4d91c232 100644
--- a/example/a2dp_sink_demo.c
+++ b/example/a2dp_sink_demo.c
@@ -113,7 +113,6 @@ static int sbc_samples_fix;
 #define PREBUFFER_BYTES     (PREBUFFER_MS*SAMPLE_RATE/1000*BYTES_PER_FRAME)
 static PaStream * stream;
 static uint8_t ring_buffer_storage[2*PREBUFFER_BYTES];
-static btstack_ring_buffer_t ring_buffer;
 static int total_num_samples = 0;
 #endif