diff --git a/java/com/google/gerrit/server/restapi/account/PutHttpPassword.java b/java/com/google/gerrit/server/restapi/account/PutHttpPassword.java
index 7b89b9c..f84a9da 100644
--- a/java/com/google/gerrit/server/restapi/account/PutHttpPassword.java
+++ b/java/com/google/gerrit/server/restapi/account/PutHttpPassword.java
@@ -39,6 +39,7 @@
 import com.google.gerrit.server.permissions.PermissionBackendException;
 import com.google.inject.Inject;
 import com.google.inject.Provider;
+import com.google.inject.Singleton;
 import java.io.IOException;
 import java.security.NoSuchAlgorithmException;
 import java.security.SecureRandom;
@@ -46,6 +47,7 @@
 import org.apache.commons.codec.binary.Base64;
 import org.eclipse.jgit.errors.ConfigInvalidException;
 
+@Singleton
 public class PutHttpPassword implements RestModifyView<AccountResource, HttpPasswordInput> {
   private static final FluentLogger logger = FluentLogger.forEnclosingClass();