diff --git a/redroid_arm64/BoardConfig.mk b/redroid_arm64/BoardConfig.mk
index 634c5a9..20014af 100644
--- a/redroid_arm64/BoardConfig.mk
+++ b/redroid_arm64/BoardConfig.mk
@@ -20,5 +20,5 @@ BOARD_SYSTEMIMAGE_PARTITION_RESERVED_SIZE := 16777216
 
 BOARD_GPU_DRIVERS := virgl radeonsi
 
-DEVICE_MANIFEST_FILE := device/redroid/manifest.xml
+DEVICE_MANIFEST_FILE += device/redroid/manifest.xml
 
diff --git a/redroid_x86_64/BoardConfig.mk b/redroid_x86_64/BoardConfig.mk
index 1fa016c..c40478b 100755
--- a/redroid_x86_64/BoardConfig.mk
+++ b/redroid_x86_64/BoardConfig.mk
@@ -16,5 +16,5 @@ BOARD_SYSTEMIMAGE_PARTITION_RESERVED_SIZE := 16777216
 
 BOARD_GPU_DRIVERS := i915 i965 r300g r600g virgl iris radeonsi
 
-DEVICE_MANIFEST_FILE := device/redroid/manifest.xml
+DEVICE_MANIFEST_FILE += device/redroid/manifest.xml