diff --git a/audio_pa.c b/audio_pa.c
index 98186a9c..022af6dd 100644
--- a/audio_pa.c
+++ b/audio_pa.c
@@ -648,7 +648,7 @@ int pa_delay(long *the_delay) {
   pa_threaded_mainloop_lock(mainloop);
   int gl = pa_stream_get_latency(stream, &latency, &negative);
   pa_threaded_mainloop_unlock(mainloop);
-  if (gl == PA_ERR_NODATA) {
+  if (gl == -PA_ERR_NODATA) {
     reply = -ENODEV;
   } else if (gl != 0) {
     reply = -EIO;