diff --git a/android/Makefile.am b/android/Makefile.am
index 309910147..e3756e89c 100644
--- a/android/Makefile.am
+++ b/android/Makefile.am
@@ -96,6 +96,7 @@ android_bluetooth_default_la_SOURCES = android/hal.h android/hal-bluetooth.c \
 					android/hal-log.h \
 					android/hal-ipc.h android/hal-ipc.c \
 					android/hal-utils.h android/hal-utils.c
+android_bluetooth_default_la_CFLAGS = $(AM_CFLAGS) -fvisibility=hidden
 android_bluetooth_default_la_CPPFLAGS = $(AM_CPPFLAGS) -I$(srcdir)/android
 android_bluetooth_default_la_LDFLAGS = $(AM_LDFLAGS) -module -avoid-version \
 					-no-undefined
@@ -195,6 +196,7 @@ android_audio_a2dp_default_la_SOURCES = android/audio-msg.h \
 					android/hardware/audio_effect.h \
 					android/hardware/hardware.h \
 					android/system/audio.h
+android_audio_a2dp_default_la_CFLAGS = $(AM_CFLAGS) -fvisibility=hidden
 android_audio_a2dp_default_la_CPPFLAGS = $(AM_CPPFLAGS) -I$(srcdir)/android \
 					$(SBC_CFLAGS)
 android_audio_a2dp_default_la_LIBADD = $(SBC_LIBS) -lrt
@@ -212,6 +214,7 @@ android_audio_sco_default_la_SOURCES = android/hal-log.h \
 					android/audio_utils/resampler.c \
 					android/audio_utils/resampler.h \
 					android/system/audio.h
+android_audio_sco_default_la_CFLAGS = $(AM_CFLAGS) -fvisibility=hidden
 android_audio_sco_default_la_CPPFLAGS = $(AM_CPPFLAGS) -I$(srcdir)/android
 android_audio_sco_default_la_LIBADD = $(SPEEXDSP_LIBS) -lrt
 android_audio_sco_default_la_LDFLAGS = $(AM_LDFLAGS) -module -avoid-version \
diff --git a/android/hal-audio.c b/android/hal-audio.c
index d37d6098c..f3d9b40a6 100644
--- a/android/hal-audio.c
+++ b/android/hal-audio.c
@@ -1618,6 +1618,7 @@ static struct hw_module_methods_t hal_module_methods = {
 	.open = audio_open,
 };
 
+__attribute__ ((visibility("default")))
 struct audio_module HAL_MODULE_INFO_SYM = {
 	.common = {
 		.tag = HARDWARE_MODULE_TAG,
diff --git a/android/hal-bluetooth.c b/android/hal-bluetooth.c
index d4442e620..7d1e5ac63 100644
--- a/android/hal-bluetooth.c
+++ b/android/hal-bluetooth.c
@@ -1117,6 +1117,7 @@ static struct hw_module_methods_t bluetooth_module_methods = {
 	.open = open_bluetooth,
 };
 
+__attribute__ ((visibility("default")))
 struct hw_module_t HAL_MODULE_INFO_SYM = {
 	.tag = HARDWARE_MODULE_TAG,
 	.version_major = 1,
diff --git a/android/hal-sco.c b/android/hal-sco.c
index d7c08a68b..3d66ad357 100644
--- a/android/hal-sco.c
+++ b/android/hal-sco.c
@@ -1507,6 +1507,7 @@ static struct hw_module_methods_t hal_module_methods = {
 	.open = sco_open,
 };
 
+__attribute__ ((visibility("default")))
 struct audio_module HAL_MODULE_INFO_SYM = {
 	.common = {
 		.tag = HARDWARE_MODULE_TAG,