diff --git a/core/src/main/java/google/registry/tools/CreateOrUpdateRegistrarCommand.java b/core/src/main/java/google/registry/tools/CreateOrUpdateRegistrarCommand.java
index 046403a3a..f9f90a98d 100644
--- a/core/src/main/java/google/registry/tools/CreateOrUpdateRegistrarCommand.java
+++ b/core/src/main/java/google/registry/tools/CreateOrUpdateRegistrarCommand.java
@@ -138,7 +138,7 @@ abstract class CreateOrUpdateRegistrarCommand extends MutatingCommand {
       description =
           "Used together with --cert_file when updating an registrar. "
               + "If set, current cert is saved as failover.")
-  private Boolean rotatePrimaryCert = Boolean.FALSE;
+  private boolean rotatePrimaryCert = false;
 
   @Nullable
   @Parameter(