diff --git a/audio/audio_driver.c b/audio/audio_driver.c
index 656e74500d..fc12d7d66c 100644
--- a/audio/audio_driver.c
+++ b/audio/audio_driver.c
@@ -482,7 +482,7 @@ void audio_driver_set_nonblocking_state(bool enable)
  * Returns: true (1) if audio samples were written to the audio
  * driver, false (0) in case of an error.
  **/
-bool audio_driver_flush(const int16_t *data, size_t samples)
+static bool audio_driver_flush(const int16_t *data, size_t samples)
 {
    bool is_slowmotion, is_paused;
    static struct retro_perf_counter audio_convert_s16 = {0};
diff --git a/audio/audio_driver.h b/audio/audio_driver.h
index ad6b1bcb1d..a78388bb0e 100644
--- a/audio/audio_driver.h
+++ b/audio/audio_driver.h
@@ -122,8 +122,6 @@ void audio_driver_set_nonblocking_state(bool enable);
  **/
 const char* config_get_audio_driver_options(void);
 
-bool audio_driver_flush(const int16_t *data, size_t samples);
-
 void audio_driver_sample(int16_t left, int16_t right);
 
 size_t audio_driver_sample_batch(const int16_t *data, size_t frames);