diff --git a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/r5/validation/ValidationEngine.java b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/r5/validation/ValidationEngine.java
index 38ab4646a..17ef385f0 100644
--- a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/r5/validation/ValidationEngine.java
+++ b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/r5/validation/ValidationEngine.java
@@ -1310,7 +1310,7 @@ public class ValidationEngine implements IValidatorResourceFetcher {
     StructureDefinition sd = (StructureDefinition) res;
     StructureDefinition base = context.fetchResource(StructureDefinition.class, sd.getBaseDefinition());
     
-    new ProfileUtilities(context, null, null).generateSnapshot(base, sd, sd.getUrl(), null, sd.getName());
+    new ProfileUtilities(context, null, null).setAutoFixSliceNames(true).generateSnapshot(base, sd, sd.getUrl(), null, sd.getName());
     return sd;
   }
 
@@ -1364,7 +1364,7 @@ public class ValidationEngine implements IValidatorResourceFetcher {
     StructureDefinition sdb = context.fetchResource(StructureDefinition.class, sd.getBaseDefinition());
     if (sdb != null) {
       makeSnapshot(sdb);
-      new ProfileUtilities(context, null, null).generateSnapshot(sdb, sd, sd.getUrl(), null, sd.getName());
+      new ProfileUtilities(context, null, null).setAutoFixSliceNames(true).generateSnapshot(sdb, sd, sd.getUrl(), null, sd.getName());
     }
     
   }
diff --git a/pom.xml b/pom.xml
index 1fdb99239..cf51fe1c9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,7 +17,7 @@
 
     <properties>
         <hapi_fhir_version>4.1.0</hapi_fhir_version>
-        <validator_test_case_version>1.0.34-SNAPSHOT</validator_test_case_version>
+        <validator_test_case_version>1.0.35-SNAPSHOT</validator_test_case_version>
     </properties>
 
     <artifactId>org.hl7.fhir.core</artifactId>