diff --git a/Android.mk b/Android.mk
index 159106a..0191d87 100644
--- a/Android.mk
+++ b/Android.mk
@@ -14,6 +14,7 @@
 LOCAL_JACK_COVERAGE_INCLUDE_FILTER := com.android.calllogbackup.*
 
 LOCAL_PACKAGE_NAME := CallLogBackup
+LOCAL_PRIVATE_PLATFORM_APIS := true
 LOCAL_CERTIFICATE := shared
 LOCAL_PRIVILEGED_MODULE := true
 
diff --git a/tests/Android.mk b/tests/Android.mk
index 0edf0c9..58b4cb0 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -12,6 +12,7 @@
 LOCAL_SRC_FILES := $(call all-java-files-under, src)
 
 LOCAL_PACKAGE_NAME := CallLogBackupTests
+LOCAL_PRIVATE_PLATFORM_APIS := true
 
 LOCAL_INSTRUMENTATION_FOR := CallLogBackup
 LOCAL_CERTIFICATE := shared