diff --git a/py/circuitpy_mpconfig.mk b/py/circuitpy_mpconfig.mk
index 302368f74a..84fb926b5e 100644
--- a/py/circuitpy_mpconfig.mk
+++ b/py/circuitpy_mpconfig.mk
@@ -45,9 +45,6 @@ CFLAGS += -DCIRCUITPY_AUDIOBUSIO=$(CIRCUITPY_AUDIOBUSIO)
 CIRCUITPY_AUDIOIO ?= $(CIRCUITPY_FULL_BUILD)
 CFLAGS += -DCIRCUITPY_AUDIOIO=$(CIRCUITPY_AUDIOIO)
 
-CIRCUITPY_AUDIOIO_COMPAT ?= $(CIRCUITPY_AUDIOIO)
-CFLAGS += -DCIRCUITPY_AUDIOIO_COMPAT=$(CIRCUITPY_AUDIOIO_COMPAT)
-
 CIRCUITPY_AUDIOPWMIO ?= 0
 CFLAGS += -DCIRCUITPY_AUDIOPWMIO=$(CIRCUITPY_AUDIOPWMIO)
 
diff --git a/shared-bindings/audioio/__init__.c b/shared-bindings/audioio/__init__.c
index 7ec927834f..a9c58e8645 100644
--- a/shared-bindings/audioio/__init__.c
+++ b/shared-bindings/audioio/__init__.c
@@ -33,15 +33,6 @@
 #include "shared-bindings/audioio/__init__.h"
 #include "shared-bindings/audioio/AudioOut.h"
 
-#if CIRCUITPY_AUDIOIO_COMPAT
-#include "shared-bindings/audiomixer/Mixer.h"
-#include "shared-bindings/audiocore/RawSample.h"
-#include "shared-bindings/audiocore/WaveFile.h"
-#endif
-#if CIRCUITPY_AUDIOMIXER
-#include "shared-bindings/audiomixer/Mixer.h"
-#endif
-
 //| """Support for audio output
 //|
 //| The `audioio` module contains classes to provide access to audio IO.
@@ -62,13 +53,6 @@
 STATIC const mp_rom_map_elem_t audioio_module_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_audioio) },
     { MP_ROM_QSTR(MP_QSTR_AudioOut), MP_ROM_PTR(&audioio_audioout_type) },
-#if CIRCUITPY_AUDIOIO_COMPAT
-    #if CIRCUITPY_AUDIOMIXER
-    { MP_ROM_QSTR(MP_QSTR_Mixer), MP_ROM_PTR(&audiomixer_mixer_type) },
-    #endif
-    { MP_ROM_QSTR(MP_QSTR_RawSample), MP_ROM_PTR(&audioio_rawsample_type) },
-    { MP_ROM_QSTR(MP_QSTR_WaveFile), MP_ROM_PTR(&audioio_wavefile_type) },
-#endif
 };
 
 STATIC MP_DEFINE_CONST_DICT(audioio_module_globals, audioio_module_globals_table);