diff --git a/src/applications/repository/storage/PhabricatorRepository.php b/src/applications/repository/storage/PhabricatorRepository.php
index 2174bdbadf..63e4e5bb57 100644
--- a/src/applications/repository/storage/PhabricatorRepository.php
+++ b/src/applications/repository/storage/PhabricatorRepository.php
@@ -241,7 +241,7 @@ final class PhabricatorRepository extends PhabricatorRepositoryDAO
     if ($this->shouldUseSSH()) {
       switch ($this->getVersionControlSystem()) {
         case PhabricatorRepositoryType::REPOSITORY_TYPE_SVN:
-          $pattern = "SVN_SSH=%s svn --non-interactive {$pattern}";
+          $pattern = "SVN_SSH=%s svn --trust-server-cert --non-interactive {$pattern}";
           array_unshift(
             $args,
             csprintf(
@@ -300,6 +300,7 @@ final class PhabricatorRepository extends PhabricatorRepositoryDAO
             $pattern =
               "svn ".
               "--non-interactive ".
+              "--trust-server-cert ".
               "--no-auth-cache ".
               "--username %P ".
               "--password %P ".
@@ -316,7 +317,7 @@ final class PhabricatorRepository extends PhabricatorRepositoryDAO
     } else {
       switch ($this->getVersionControlSystem()) {
         case PhabricatorRepositoryType::REPOSITORY_TYPE_SVN:
-          $pattern = "svn --non-interactive {$pattern}";
+          $pattern = "svn --non-interactive --trust-server-cert {$pattern}";
           break;
         case PhabricatorRepositoryType::REPOSITORY_TYPE_GIT:
           $pattern = "HOME=%s git {$pattern}";