diff --git a/src/applications/config/schema/PhabricatorConfigColumnSchema.php b/src/applications/config/schema/PhabricatorConfigColumnSchema.php
index dc60353233..091b5caef9 100644
--- a/src/applications/config/schema/PhabricatorConfigColumnSchema.php
+++ b/src/applications/config/schema/PhabricatorConfigColumnSchema.php
@@ -121,7 +121,7 @@ final class PhabricatorConfigColumnSchema
     return 0;
   }
 
-  public function compareToSimilarSchema(
+  protected function compareToSimilarSchema(
     PhabricatorConfigStorageSchema $expect) {
 
     $issues = array();
diff --git a/src/applications/config/schema/PhabricatorConfigDatabaseSchema.php b/src/applications/config/schema/PhabricatorConfigDatabaseSchema.php
index f67d062c27..bf0af3f480 100644
--- a/src/applications/config/schema/PhabricatorConfigDatabaseSchema.php
+++ b/src/applications/config/schema/PhabricatorConfigDatabaseSchema.php
@@ -29,7 +29,7 @@ final class PhabricatorConfigDatabaseSchema
     return $this->getTables();
   }
 
-  public function compareToSimilarSchema(
+  protected function compareToSimilarSchema(
     PhabricatorConfigStorageSchema $expect) {
 
     $issues = array();
diff --git a/src/applications/config/schema/PhabricatorConfigKeySchema.php b/src/applications/config/schema/PhabricatorConfigKeySchema.php
index 5fe11842de..b30a3641e9 100644
--- a/src/applications/config/schema/PhabricatorConfigKeySchema.php
+++ b/src/applications/config/schema/PhabricatorConfigKeySchema.php
@@ -83,7 +83,7 @@ final class PhabricatorConfigKeySchema
     return $size;
   }
 
-  public function compareToSimilarSchema(
+  protected function compareToSimilarSchema(
     PhabricatorConfigStorageSchema $expect) {
 
     $issues = array();
diff --git a/src/applications/config/schema/PhabricatorConfigServerSchema.php b/src/applications/config/schema/PhabricatorConfigServerSchema.php
index 2f3557fe6f..b8b21fe919 100644
--- a/src/applications/config/schema/PhabricatorConfigServerSchema.php
+++ b/src/applications/config/schema/PhabricatorConfigServerSchema.php
@@ -27,7 +27,7 @@ final class PhabricatorConfigServerSchema
     return $this->getDatabases();
   }
 
-  public function compareToSimilarSchema(
+  protected function compareToSimilarSchema(
     PhabricatorConfigStorageSchema $expect) {
     return array();
   }
diff --git a/src/applications/config/schema/PhabricatorConfigTableSchema.php b/src/applications/config/schema/PhabricatorConfigTableSchema.php
index c7b0888705..b05e7e1e8e 100644
--- a/src/applications/config/schema/PhabricatorConfigTableSchema.php
+++ b/src/applications/config/schema/PhabricatorConfigTableSchema.php
@@ -62,7 +62,7 @@ final class PhabricatorConfigTableSchema
     return $this->collation;
   }
 
-  public function compareToSimilarSchema(
+  protected function compareToSimilarSchema(
     PhabricatorConfigStorageSchema $expect) {
 
     $issues = array();