diff --git a/src/audio/SDL_audio.c b/src/audio/SDL_audio.c
index a4fcd1110..989259ca1 100644
--- a/src/audio/SDL_audio.c
+++ b/src/audio/SDL_audio.c
@@ -1129,7 +1129,7 @@ open_audio_device(const char *devname, int iscapture,
                   const SDL_AudioSpec * desired, SDL_AudioSpec * obtained,
                   int allowed_changes, int min_id)
 {
-    const SDL_bool is_internal_thread = (desired->callback != NULL);
+    const SDL_bool is_internal_thread = (desired->callback == NULL);
     SDL_AudioDeviceID id = 0;
     SDL_AudioSpec _obtained;
     SDL_AudioDevice *device;