diff --git a/tools/releasetools/sign_target_files_apks.py b/tools/releasetools/sign_target_files_apks.py
index d25ae0c..24ee91b 100755
--- a/tools/releasetools/sign_target_files_apks.py
+++ b/tools/releasetools/sign_target_files_apks.py
@@ -91,12 +91,15 @@
       Replace the veritykeyid in BOOT/cmdline of input_target_file_zip
       with keyid of the cert pointed by <path_to_X509_PEM_cert_file>.
 
-  --avb_{boot,system,system_other,vendor,dtbo,vbmeta}_algorithm <algorithm>
-  --avb_{boot,system,system_other,vendor,dtbo,vbmeta}_key <key>
+  --avb_{boot,system,system_other,vendor,dtbo,vbmeta,vbmeta_system,
+         vbmeta_vendor}_algorithm <algorithm>
+  --avb_{boot,system,system_other,vendor,dtbo,vbmeta,vbmeta_system,
+         vbmeta_vendor}_key <key>
       Use the specified algorithm (e.g. SHA256_RSA4096) and the key to AVB-sign
       the specified image. Otherwise it uses the existing values in info dict.
 
-  --avb_{apex,boot,system,system_other,vendor,dtbo,vbmeta}_extra_args <args>
+  --avb_{apex,boot,system,system_other,vendor,dtbo,vbmeta,vbmeta_system,
+         vbmeta_vendor}_extra_args <args>
       Specify any additional args that are needed to AVB-sign the image
       (e.g. "--signing_helper /path/to/helper"). The args will be appended to
       the existing ones in info dict.
@@ -966,6 +969,8 @@
       'system_other' : 'avb_system_other_add_hashtree_footer_args',
       'vendor' : 'avb_vendor_add_hashtree_footer_args',
       'vbmeta' : 'avb_vbmeta_args',
+      'vbmeta_system' : 'avb_vbmeta_system_args',
+      'vbmeta_vendor' : 'avb_vbmeta_vendor_args',
   }
 
   def ReplaceAvbPartitionSigningKey(partition):
@@ -1193,6 +1198,18 @@
       OPTIONS.avb_algorithms['vendor'] = a
     elif o == "--avb_vendor_extra_args":
       OPTIONS.avb_extra_args['vendor'] = a
+    elif o == "--avb_vbmeta_system_key":
+      OPTIONS.avb_keys['vbmeta_system'] = a
+    elif o == "--avb_vbmeta_system_algorithm":
+      OPTIONS.avb_algorithms['vbmeta_system'] = a
+    elif o == "--avb_vbmeta_system_extra_args":
+      OPTIONS.avb_extra_args['vbmeta_system'] = a
+    elif o == "--avb_vbmeta_vendor_key":
+      OPTIONS.avb_keys['vbmeta_vendor'] = a
+    elif o == "--avb_vbmeta_vendor_algorithm":
+      OPTIONS.avb_algorithms['vbmeta_vendor'] = a
+    elif o == "--avb_vbmeta_vendor_extra_args":
+      OPTIONS.avb_extra_args['vbmeta_vendor'] = a
     elif o == "--avb_apex_extra_args":
       OPTIONS.avb_extra_args['apex'] = a
     else:
@@ -1232,6 +1249,12 @@
           "avb_vendor_algorithm=",
           "avb_vendor_key=",
           "avb_vendor_extra_args=",
+          "avb_vbmeta_system_algorithm=",
+          "avb_vbmeta_system_key=",
+          "avb_vbmeta_system_extra_args=",
+          "avb_vbmeta_vendor_algorithm=",
+          "avb_vbmeta_vendor_key=",
+          "avb_vbmeta_vendor_extra_args=",
       ],
       extra_option_handler=option_handler)