diff --git a/lib/resources/r4/observation.yaml b/lib/resources/r4/observation.yaml
index c4c4d6806..76235c05d 100644
--- a/lib/resources/r4/observation.yaml
+++ b/lib/resources/r4/observation.yaml
@@ -1262,4 +1262,4 @@ fields:
         <li> Only one referenceRange is supported </li>
         <li> `ReferenceRange.text` is not supported when `referenceRange.high` and/or `referenceRange.low` are provided. Only a referenceRange.type of `normal` is supported. </li>
       </ul>
-    url: https://hl7.org/fhir/R4/observation-definitions.html#Observation.component.referenceRange
\ No newline at end of file
+    url: https://hl7.org/fhir/R4/observation-definitions.html#Observation.component.referenceRange