diff --git a/apex/sign_virt_apex.py b/apex/sign_virt_apex.py
index c8cb07d..6863b0c 100644
--- a/apex/sign_virt_apex.py
+++ b/apex/sign_virt_apex.py
@@ -378,9 +378,9 @@
 
     # re-sign bootloader, boot.img, vendor_boot.img, and init_boot.img
     Async(AddHashFooter, args, key, files['bootloader'], wait=[replace_f])
-    Async(AddHashFooter, args, key, files['boot.img'])
-    Async(AddHashFooter, args, key, files['vendor_boot.img'])
-    Async(AddHashFooter, args, key, files['init_boot.img'])
+    boot_img_f = Async(AddHashFooter, args, key, files['boot.img'])
+    vendor_boot_img_f = Async(AddHashFooter, args, key, files['vendor_boot.img'])
+    init_boot_img_f = Async(AddHashFooter, args, key, files['init_boot.img'])
 
     # re-sign super.img
     # 1. unpack super.img
@@ -392,10 +392,11 @@
     partitions = {"system_a": system_a_img, "vendor_a": vendor_a_img}
     Async(MakeSuperImage, args, partitions, files['super.img'], wait=[system_a_f, vendor_a_f])
 
-    # re-generate vbmeta from re-signed {system_a, vendor_a}.img
+    # re-generate vbmeta from re-signed {boot, vendor_boot, init_boot, system_a, vendor_a}.img
     Async(MakeVbmetaImage, args, key, files['vbmeta.img'],
-          images=[system_a_img, vendor_a_img],
-          wait=[system_a_f, vendor_a_f])
+          images=[files['boot.img'], files['vendor_boot.img'],
+                  files['init_boot.img'], system_a_img, vendor_a_img],
+          wait=[boot_img_f, vendor_boot_img_f, init_boot_img_f, system_a_f, vendor_a_f])
 
     # Re-sign bootconfigs and the uboot_env with the same key
     bootconfig_sign_key = key
diff --git a/microdroid/Android.bp b/microdroid/Android.bp
index 67f3117..1a9a217 100644
--- a/microdroid/Android.bp
+++ b/microdroid/Android.bp
@@ -508,7 +508,10 @@
     private_key: ":microdroid_sign_key",
     partitions: [
         "microdroid_vendor",
+        "microdroid_vendor_boot",
         "microdroid",
+        "microdroid_boot",
+        "microdroid_init_boot",
     ],
 }