diff --git a/tools/releasetools/sign_target_files_apks.py b/tools/releasetools/sign_target_files_apks.py
index f0110ea..dd2de36 100755
--- a/tools/releasetools/sign_target_files_apks.py
+++ b/tools/releasetools/sign_target_files_apks.py
@@ -1033,9 +1033,8 @@
 
   extra_args = OPTIONS.gki_signing_extra_args
   if extra_args:
-    print('Setting extra GKI signing args: "%s"' % (extra_args))
-    misc_info["gki_signing_signature_args"] = (
-        misc_info.get("gki_signing_signature_args", '') + ' ' + extra_args)
+    print('Setting GKI signing args: "%s"' % (extra_args))
+    misc_info["gki_signing_signature_args"] = extra_args
 
 
 def BuildKeyMap(misc_info, key_mapping_options):
diff --git a/tools/releasetools/test_sign_target_files_apks.py b/tools/releasetools/test_sign_target_files_apks.py
index 64e27a2..ad9e657 100644
--- a/tools/releasetools/test_sign_target_files_apks.py
+++ b/tools/releasetools/test_sign_target_files_apks.py
@@ -602,7 +602,7 @@
     expected_dict = {
         'gki_signing_key_path': 'release_gki_key',
         'gki_signing_algorithm': 'release_gki_algorithm',
-        'gki_signing_signature_args': 'default_gki_signature_args release_gki_signature_extra_args',
+        'gki_signing_signature_args': 'release_gki_signature_extra_args',
     }
     ReplaceGkiSigningKey(misc_info)
     self.assertDictEqual(expected_dict, misc_info)