Revert signature

2 files changed, 3 insertions, 3 deletions

diff --git a/config-model-api/src/main/java/com/yahoo/config/application/api/DeploymentInstanceSpec.java b/config-model-api/src/main/java/com/yahoo/config/application/api/DeploymentInstanceSpec.java
index 9ce1a48f226..a4be547fe70 100644
--- a/config-model-api/src/main/java/com/yahoo/config/application/api/DeploymentInstanceSpec.java
+++ b/config-model-api/src/main/java/com/yahoo/config/application/api/DeploymentInstanceSpec.java
@@ -277,9 +277,9 @@ public class DeploymentInstanceSpec extends DeploymentSpec.Steps {
     }
 
     /** Returns the host TTL to use for given environment and region, if any */
-    public Optional<Duration> hostTTL(Environment environment, RegionName region) {
+    public Optional<Duration> hostTTL(Environment environment, Optional<RegionName> region) {
         return zones().stream()
-                      .filter(zone -> zone.concerns(environment, Optional.of(region)))
+                      .filter(zone -> zone.concerns(environment, region))
                       .findFirst()
                       .flatMap(DeploymentSpec.DeclaredZone::hostTTL)
                       .or(() -> hostTTL);
diff --git a/config-model-api/src/main/java/com/yahoo/config/application/api/DeploymentSpec.java b/config-model-api/src/main/java/com/yahoo/config/application/api/DeploymentSpec.java
index 5e79ceb738f..f355a61fa8a 100644
--- a/config-model-api/src/main/java/com/yahoo/config/application/api/DeploymentSpec.java
+++ b/config-model-api/src/main/java/com/yahoo/config/application/api/DeploymentSpec.java
@@ -209,7 +209,7 @@ public class DeploymentSpec {
      * deploy to, e.g., test and staging zones, and want to avoid the delay of having to provision hosts.
      */
     public Optional<Duration> hostTTL(InstanceName instance, Environment environment, RegionName region) {
-        return instance(instance).flatMap(spec -> spec.hostTTL(environment, region))
+        return instance(instance).flatMap(spec -> spec.hostTTL(environment, Optional.of(region)))
                                  .or(this::hostTTL);
     }