diff --git a/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/BundleUtil.java b/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/BundleUtil.java
index a736284937b..d48969ae5ca 100644
--- a/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/BundleUtil.java
+++ b/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/BundleUtil.java
@@ -233,7 +233,7 @@ public class BundleUtil {
 			 * All 3 might be null - That's ok because we still want to know the
 			 * order in the original bundle.
 			 */
-			BundleEntryMutator mutator = new BundleEntryMutator(nextEntry, requestChildDef, requestChildContentsDef);
+			BundleEntryMutator mutator = new BundleEntryMutator(theContext, nextEntry, requestChildDef, requestChildContentsDef, entryChildContentsDef);
 			ModifiableBundleEntry entry = new ModifiableBundleEntry(new BundleEntryParts(fullUrl, requestType, url, resource, conditionalUrl), mutator);
 			theProcessor.accept(entry);
 		}
diff --git a/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/bundle/BundleEntryMutator.java b/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/bundle/BundleEntryMutator.java
index 8dabd2e6763..30cba478e07 100644
--- a/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/bundle/BundleEntryMutator.java
+++ b/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/bundle/BundleEntryMutator.java
@@ -31,11 +31,15 @@ public class BundleEntryMutator {
 	private final IBase myEntry;
 	private final BaseRuntimeChildDefinition myRequestChildDef;
 	private final BaseRuntimeElementCompositeDefinition<?> myRequestChildContentsDef;
+	private final FhirContext myFhirContext;
+	private final BaseRuntimeElementCompositeDefinition<?> myEntryDefinition;
 
-	public BundleEntryMutator(IBase theEntry, BaseRuntimeChildDefinition theRequestChildDef, BaseRuntimeElementCompositeDefinition<?> theRequestChildContentsDef) {
+	public BundleEntryMutator(FhirContext theFhirContext, IBase theEntry, BaseRuntimeChildDefinition theRequestChildDef, BaseRuntimeElementCompositeDefinition<?> theChildContentsDef, BaseRuntimeElementCompositeDefinition<?> theEntryDefinition) {
+		myFhirContext = theFhirContext;
 		myEntry = theEntry;
 		myRequestChildDef = theRequestChildDef;
-		myRequestChildContentsDef = theRequestChildContentsDef;
+		myRequestChildContentsDef = theChildContentsDef;
+		myEntryDefinition = theEntryDefinition;
 	}
 
 	void setRequestUrl(FhirContext theFhirContext, String theRequestUrl) {
@@ -45,4 +49,13 @@ public class BundleEntryMutator {
 			requestUrlChildDef.getMutator().addValue(nextRequest, url);
 		}
 	}
+
+	@SuppressWarnings("unchecked")
+	public void setFullUrl(String theFullUrl) {
+		IPrimitiveType<String> value = (IPrimitiveType<String>) myFhirContext.getElementDefinition("uri").newInstance();
+		value.setValue(theFullUrl);
+
+		BaseRuntimeChildDefinition fullUrlChild = myEntryDefinition.getChildByName("fullUrl");
+		fullUrlChild.getMutator().setValue(myEntry, value);
+	}
 }
diff --git a/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/bundle/BundleEntryParts.java b/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/bundle/BundleEntryParts.java
index 7bc9ecfa456..5d698cec7b3 100644
--- a/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/bundle/BundleEntryParts.java
+++ b/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/bundle/BundleEntryParts.java
@@ -58,4 +58,5 @@ public class BundleEntryParts {
 	public String getUrl() {
 		return myUrl;
 	}
+
 }
diff --git a/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/bundle/ModifiableBundleEntry.java b/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/bundle/ModifiableBundleEntry.java
index 0b02176cd2d..04bb506fd11 100644
--- a/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/bundle/ModifiableBundleEntry.java
+++ b/hapi-fhir-base/src/main/java/ca/uhn/fhir/util/bundle/ModifiableBundleEntry.java
@@ -51,4 +51,8 @@ public class ModifiableBundleEntry {
 	public IBaseResource getResource() {
 		return myBundleEntryParts.getResource();
 	}
+
+	public void setFullUrl(String theFullUrl) {
+		myBundleEntryMutator.setFullUrl(theFullUrl);
+	}
 }
diff --git a/hapi-fhir-structures-r4/src/test/java/ca/uhn/fhir/util/bundle/BundleUtilTest.java b/hapi-fhir-structures-r4/src/test/java/ca/uhn/fhir/util/bundle/BundleUtilTest.java
index 5801947ab06..b27b77aec2c 100644
--- a/hapi-fhir-structures-r4/src/test/java/ca/uhn/fhir/util/bundle/BundleUtilTest.java
+++ b/hapi-fhir-structures-r4/src/test/java/ca/uhn/fhir/util/bundle/BundleUtilTest.java
@@ -65,10 +65,23 @@ public class BundleUtilTest {
 	}
 
 	@Test
-	public void testProcessEntries() {
+	public void testProcessEntriesSetRequestUrl() {
+		Bundle bundle = new Bundle();
+		bundle.setType(Bundle.BundleType.TRANSACTION);
+		bundle.addEntry().getRequest().setMethod(Bundle.HTTPVerb.POST).setUrl("Patient");
+
+		Consumer<ModifiableBundleEntry> consumer = e -> e.setFullUrl("http://hello/Patient/123");
+		BundleUtil.processEntries(ourCtx, bundle, consumer);
+
+		assertEquals("http://hello/Patient/123", bundle.getEntryFirstRep().getFullUrl());
+	}
+
+	@Test
+	public void testProcessEntriesSetFullUrl() {
 		Bundle bundle = new Bundle();
 		bundle.setType(Bundle.BundleType.TRANSACTION);
 		bundle.addEntry().getRequest().setMethod(Bundle.HTTPVerb.GET).setUrl("Observation");
+
 		Consumer<ModifiableBundleEntry> consumer = e -> e.setRequestUrl(ourCtx, e.getRequestUrl() + "?foo=bar");
 		BundleUtil.processEntries(ourCtx, bundle, consumer);
 		assertEquals("Observation?foo=bar", bundle.getEntryFirstRep().getRequest().getUrl());