diff --git a/javatests/google/registry/flows/FlowTestCase.java b/javatests/google/registry/flows/FlowTestCase.java
index 5d42720a5..c23df7cc2 100644
--- a/javatests/google/registry/flows/FlowTestCase.java
+++ b/javatests/google/registry/flows/FlowTestCase.java
@@ -157,7 +157,7 @@ public abstract class FlowTestCase<F extends Flow> extends ShardableTestCase {
     }
   }
 
-  public void assertNoHistory() throws Exception {
+  protected void assertNoHistory() throws Exception {
     assertThat(ofy().load().type(HistoryEntry.class)).isEmpty();
   }