1 files changed, 4 insertions, 0 deletions

diff --git a/firmware/asm/pcm-mixer.c b/firmware/asm/pcm-mixer.c
index 3e6e2fff78..9bdb962576 100644
--- a/firmware/asm/pcm-mixer.c
+++ b/firmware/asm/pcm-mixer.c
@@ -109,3 +109,7 @@ static FORCE_INLINE void write_samples(int16_t *out,
 
 
 #endif /* CPU_* */
+
+#ifndef mixer_buffer_callback_exit
+#define mixer_buffer_callback_exit() do{}while(0)
+#endif