diff --git a/modules/audio/audio_hw.c b/modules/audio/audio_hw.c
index 2f44d95..ef070c1 100644
--- a/modules/audio/audio_hw.c
+++ b/modules/audio/audio_hw.c
@@ -327,7 +327,8 @@
                                   audio_io_handle_t handle,
                                   audio_devices_t devices,
                                   struct audio_config *config,
-                                  struct audio_stream_in **stream_in)
+                                  struct audio_stream_in **stream_in,
+                                  audio_input_flags_t flags __unused)
 {
     struct stub_audio_device *ladev = (struct stub_audio_device *)dev;
     struct stub_stream_in *in;
diff --git a/modules/audio_remote_submix/audio_hw.cpp b/modules/audio_remote_submix/audio_hw.cpp
index c7e4305..9e824b1 100644
--- a/modules/audio_remote_submix/audio_hw.cpp
+++ b/modules/audio_remote_submix/audio_hw.cpp
@@ -1373,7 +1373,8 @@
                                   audio_io_handle_t handle,
                                   audio_devices_t devices,
                                   struct audio_config *config,
-                                  struct audio_stream_in **stream_in)
+                                  struct audio_stream_in **stream_in,
+                                  audio_input_flags_t flags __unused)
 {
     struct submix_audio_device *rsxadev = audio_hw_device_get_submix_audio_device(dev);
     struct submix_stream_in *in;
diff --git a/modules/usbaudio/audio_hw.c b/modules/usbaudio/audio_hw.c
index 4af01af..8fbd528 100644
--- a/modules/usbaudio/audio_hw.c
+++ b/modules/usbaudio/audio_hw.c
@@ -1659,7 +1659,8 @@
                                   audio_io_handle_t handle,
                                   audio_devices_t devices,
                                   struct audio_config *config,
-                                  struct audio_stream_in **stream_in)
+                                  struct audio_stream_in **stream_in,
+                                  audio_input_flags_t flags __unused)
 {
     ALOGV("usb: in adev_open_input_stream() rate:%" PRIu32 ", chanMask:0x%" PRIX32 ", fmt:%" PRIu8,
           config->sample_rate, config->channel_mask, config->format);