diff --git a/home/fhirvalidation.py b/home/fhirvalidation.py
index e853d0a..1916e7c 100644
--- a/home/fhirvalidation.py
+++ b/home/fhirvalidation.py
@@ -162,7 +162,7 @@ class Validator():
                          )
         resource = r.json()
 
-        outcome = fhir_operation_validate(resource_type, resource, send_pretty=True)
+        outcome = self.fhir_operation_validate(resource_type, resource, send_pretty=True)
         render_validation_outcome(resource, outcome, resource_url=resource_url)