diff --git a/Android.mk b/Android.mk
index 69f5fc5..50edc7c 100644
--- a/Android.mk
+++ b/Android.mk
@@ -7,6 +7,7 @@
 
 LOCAL_PACKAGE_NAME := LegacyCamera
 #LOCAL_SDK_VERSION := current
+LOCAL_PRIVATE_PLATFORM_APIS := true
 
 LOCAL_JNI_SHARED_LIBRARIES := libjni_legacymosaic
 
diff --git a/tests/Android.mk b/tests/Android.mk
index 95c8622..d6d0a8d 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -11,6 +11,7 @@
 LOCAL_SRC_FILES := $(call all-java-files-under, src)
 
 LOCAL_PACKAGE_NAME := LegacyCameraTests
+LOCAL_PRIVATE_PLATFORM_APIS := true
 
 LOCAL_INSTRUMENTATION_FOR := LegacyCamera