diff --git a/hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/search/builder/QueryStack.java b/hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/search/builder/QueryStack.java
index 7f7c7dbbd29..4d9c61ed230 100644
--- a/hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/search/builder/QueryStack.java
+++ b/hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/search/builder/QueryStack.java
@@ -2863,6 +2863,7 @@ public class QueryStack {
 			if (indexOnContainedResources) {
 				return EmbeddedChainedSearchModeEnum.UPLIFTED_AND_REF_JOIN;
 			}
+			ourLog.debug("Search on {}.{} uses an uplifted refchain.", theResourceType, theParameterName);
 			return EmbeddedChainedSearchModeEnum.UPLIFTED_ONLY;
 		} else {
 			return EmbeddedChainedSearchModeEnum.REF_JOIN_ONLY;