diff --git a/hapi-fhir-jpaserver-searchparam/src/main/java/ca/uhn/fhir/jpa/searchparam/extractor/SearchParamExtractorDstu3.java b/hapi-fhir-jpaserver-searchparam/src/main/java/ca/uhn/fhir/jpa/searchparam/extractor/SearchParamExtractorDstu3.java
index eebdd27706d..170c9522e6a 100644
--- a/hapi-fhir-jpaserver-searchparam/src/main/java/ca/uhn/fhir/jpa/searchparam/extractor/SearchParamExtractorDstu3.java
+++ b/hapi-fhir-jpaserver-searchparam/src/main/java/ca/uhn/fhir/jpa/searchparam/extractor/SearchParamExtractorDstu3.java
@@ -51,6 +51,7 @@ public class SearchParamExtractorDstu3 extends BaseSearchParamExtractor implemen
 	@VisibleForTesting
 	public SearchParamExtractorDstu3(ModelConfig theModelConfig, FhirContext theCtx, IValidationSupport theValidationSupport, ISearchParamRegistry theSearchParamRegistry) {
 		super(theCtx, theSearchParamRegistry);
+		initFhirPathEngine(theValidationSupport);
 		start();
 	}
 
@@ -74,9 +75,13 @@ public class SearchParamExtractorDstu3 extends BaseSearchParamExtractor implemen
 		super.start();
 		if (myFhirPathEngine == null) {
 			IValidationSupport support = myApplicationContext.getBean(IValidationSupport.class);
-			IWorkerContext worker = new HapiWorkerContext(getContext(), support);
-			myFhirPathEngine = new FHIRPathEngine(worker);
+			initFhirPathEngine(support);
 		}
 	}
 
+	public void initFhirPathEngine(IValidationSupport theSupport) {
+		IWorkerContext worker = new HapiWorkerContext(getContext(), theSupport);
+		myFhirPathEngine = new FHIRPathEngine(worker);
+	}
+
 }