diff --git a/TODO b/TODO
new file mode 100644
index 00000000..42303bfd
--- /dev/null
+++ b/TODO
@@ -0,0 +1,4 @@
+- in squeezelite some buffers (stream, output, header, recv) are allocated 
+although they are almost static (expect output). This creates a risk of 
+memory fragmentation, especially because the large output is re-allocated for
+AirPlay
\ No newline at end of file
diff --git a/components/squeezelite/decode_external.c b/components/squeezelite/decode_external.c
index 2728610d..9eac63b4 100644
--- a/components/squeezelite/decode_external.c
+++ b/components/squeezelite/decode_external.c
@@ -213,6 +213,7 @@ void raop_sink_cmd_handler(raop_event_t event, void *param)
 			break;
 		}
 		case RAOP_SETUP:
+			// we need a fair bit of space for RTP process
 			_buf_resize(outputbuf, RAOP_OUTPUT_SIZE);
 			LOG_INFO("resizing buffer %u", outputbuf->size);
 			break;