diff --git a/hapi-fhir-testpage-overlay/src/main/java/ca/uhn/fhir/to/TesterConfig.java b/hapi-fhir-testpage-overlay/src/main/java/ca/uhn/fhir/to/TesterConfig.java
index df6d7146786f..159f5fb8f60b 100644
--- a/hapi-fhir-testpage-overlay/src/main/java/ca/uhn/fhir/to/TesterConfig.java
+++ b/hapi-fhir-testpage-overlay/src/main/java/ca/uhn/fhir/to/TesterConfig.java
@@ -27,6 +27,7 @@ public class TesterConfig {
 
 	public IServerBuilderStep1 addServer() {
 		ServerBuilder retVal = new ServerBuilder();
+		myServerBuilders.add(retVal);
 		return retVal;
 	}