diff --git a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/r5/validation/InstanceValidator.java b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/r5/validation/InstanceValidator.java
index 6dc4d063b..0c2cb4dd9 100644
--- a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/r5/validation/InstanceValidator.java
+++ b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/r5/validation/InstanceValidator.java
@@ -2354,7 +2354,7 @@ public class InstanceValidator extends BaseValidator implements IResourceValidat
       long t = System.nanoTime();
       StructureDefinition sd = context.fetchResource(StructureDefinition.class, url);
       sdTime = sdTime + (System.nanoTime() - t);
-      if (sd != null && (sd.getType().equals(type) || sd.getUrl().equals("http://hl7.org/fhir/StructureDefinition/" + type)) && sd.hasSnapshot())
+      if (sd != null && (sd.getType().equals(type) || sd.getUrl().equals(url)) && sd.hasSnapshot())
         return sd;
     }
     return null;