diff --git a/org.hl7.fhir.publisher.core/src/main/java/org/hl7/fhir/igtools/renderers/HistoryGenerator.java b/org.hl7.fhir.publisher.core/src/main/java/org/hl7/fhir/igtools/renderers/HistoryGenerator.java
index 1f046bb7..0bbd463e 100644
--- a/org.hl7.fhir.publisher.core/src/main/java/org/hl7/fhir/igtools/renderers/HistoryGenerator.java
+++ b/org.hl7.fhir.publisher.core/src/main/java/org/hl7/fhir/igtools/renderers/HistoryGenerator.java
@@ -163,7 +163,7 @@ public static boolean allEntriesAreHistoryProvenance(Element resource) throws Un
     }
     List<Element> entries = resource.getChildrenByName("entry");
     for (Element be : entries) {
-      if (!"Provenance".equals(be.getNamedChild("resource").fhirType())) {
+      if (!be.hasChild("resource") || !"Provenance".equals(be.getNamedChild("resource").fhirType())) {
         return false;
       }
     }