diff --git a/drm/1.0/default/Android.mk b/drm/1.0/default/Android.mk
index f2334a0..23a4506 100644
--- a/drm/1.0/default/Android.mk
+++ b/drm/1.0/default/Android.mk
@@ -38,9 +38,12 @@
 LOCAL_C_INCLUDES := \
   hardware/interfaces/drm
 
-# TODO: The legacy DRM plugins only support 32-bit. They need
-# to be migrated to 64-bit (b/18948909)
+# TODO(b/18948909) Some legacy DRM plugins only support 32-bit. They need to be
+# migrated to 64-bit. Once all of a device's legacy DRM plugins support 64-bit,
+# that device can turn on ENABLE_MEDIADRM_64 to build this service as 64-bit.
+ifneq ($(ENABLE_MEDIADRM_64), true)
 LOCAL_32_BIT_ONLY := true
+endif
 
 include $(BUILD_EXECUTABLE)
 
@@ -55,11 +58,13 @@
     DrmPlugin.cpp \
     CryptoFactory.cpp \
     CryptoPlugin.cpp \
+    LegacyPluginPath.cpp \
     TypeConvert.cpp \
 
 LOCAL_SHARED_LIBRARIES := \
     android.hardware.drm@1.0 \
     android.hidl.memory@1.0 \
+    libcutils \
     libhidlbase \
     libhidlmemory \
     libhidltransport \
@@ -72,8 +77,11 @@
     frameworks/native/include \
     frameworks/av/include
 
-# TODO: The legacy DRM plugins only support 32-bit. They need
-# to be migrated to 64-bit (b/18948909)
+# TODO: Some legacy DRM plugins only support 32-bit. They need to be migrated to
+# 64-bit. (b/18948909) Once all of a device's legacy DRM plugins support 64-bit,
+# that device can turn on ENABLE_MEDIADRM_64 to build this impl as 64-bit.
+ifneq ($(ENABLE_MEDIADRM_64), true)
 LOCAL_32_BIT_ONLY := true
+endif
 
 include $(BUILD_SHARED_LIBRARY)