diff --git a/pixel/firmware.sh b/pixel/firmware.sh
index 60c00bb..baae727 100755
--- a/pixel/firmware.sh
+++ b/pixel/firmware.sh
@@ -80,9 +80,14 @@ setup_makefiles() {
   local exists=$(grep firmware "${vendor_path}/BoardConfigVendor.mk")
   if [[ -z "${exists}" ]]; then
     echo >> "${vendor_path}/BoardConfigVendor.mk"
-    echo "# firmware">> "${vendor_path}/BoardConfigVendor.mk"
+    echo "# firmware" >> "${vendor_path}/BoardConfigVendor.mk"
     echo "TARGET_BOARD_INFO_FILE := vendor/google/${device}/android-info.txt" >> "${vendor_path}/BoardConfigVendor.mk"
     echo >> "${vendor_path}/BoardConfigVendor.mk"
+    echo "AB_OTA_PARTITIONS += \\" >> "${vendor_path}/BoardConfigVendor.mk"
+    for fp in ${firmware_partitions[@]}; do
+      echo "  ${fp} \\" >> "${vendor_path}/BoardConfigVendor.mk"
+    done
+    echo >> "${vendor_path}/BoardConfigVendor.mk"
   fi
 
   local exists2=$(grep firmware "${vendor_path}/Android.mk")