diff --git a/aosp/update_attempter_android.cc b/aosp/update_attempter_android.cc
index f2ec2a5..4e609d4 100644
--- a/aosp/update_attempter_android.cc
+++ b/aosp/update_attempter_android.cc
@@ -775,7 +775,8 @@
                                        boot_control_,
                                        hardware_,
                                        fetcher,  // passes ownership
-                                       true /* interactive */);
+                                       true /* interactive */,
+                                       update_certificates_path_);
   download_action->set_delegate(this);
   download_action->set_base_offset(base_offset_);
   auto filesystem_verifier_action = std::make_unique<FilesystemVerifierAction>(
diff --git a/aosp/update_attempter_android.h b/aosp/update_attempter_android.h
index 7fa01e8..5d832e0 100644
--- a/aosp/update_attempter_android.h
+++ b/aosp/update_attempter_android.h
@@ -133,6 +133,11 @@
   // 3. When user called |ResetStatus()|
   bool ClearUpdateCompletedMarker();
 
+  void set_update_certificates_path(
+      const std::string& update_certificates_path) {
+    update_certificates_path_ = update_certificates_path;
+  }
+
  private:
   friend class UpdateAttempterAndroidTest;
 
@@ -274,6 +279,9 @@
   // CleanupPreviousUpdateAction has not been executed.
   std::optional<ErrorCode> cleanup_previous_update_code_{std::nullopt};
 
+  // The path to the zip file with X509 certificates.
+  std::string update_certificates_path_{constants::kUpdateCertificatesPath};
+
   DISALLOW_COPY_AND_ASSIGN(UpdateAttempterAndroid);
 };