diff --git a/java/google/registry/tools/CreateOrUpdateTldCommand.java b/java/google/registry/tools/CreateOrUpdateTldCommand.java
index 22a73d4ea..23f7a2fdb 100644
--- a/java/google/registry/tools/CreateOrUpdateTldCommand.java
+++ b/java/google/registry/tools/CreateOrUpdateTldCommand.java
@@ -398,7 +398,7 @@ abstract class CreateOrUpdateTldCommand extends MutatingCommand {
     }
   }
 
-  private ImmutableSet<String> formUpdatedList(
+  private static ImmutableSet<String> formUpdatedList(
       String description,
       ImmutableSet<String> originals,
       List<String> toReplace,
@@ -422,7 +422,7 @@ abstract class CreateOrUpdateTldCommand extends MutatingCommand {
     return ImmutableSet.copyOf(difference(union(originals, toAdd), toRemove));
   }
 
-  private void checkIsEmpty(Set<String> set, String errorString) {
+  private static void checkIsEmpty(Set<String> set, String errorString) {
     checkArgument(set.isEmpty(), String.format("%s: %s", errorString, set));
   }