diff --git a/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_4_3/4636-fix-oracle-migration-problem.yaml b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_4_3/4636-fix-oracle-migration-problem.yaml
new file mode 100644
index 00000000000..e0df692ada6
--- /dev/null
+++ b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_4_3/4636-fix-oracle-migration-problem.yaml
@@ -0,0 +1,4 @@
+---
+type: fix
+issue: 4636
+title: "Fixed Oracle syntax problem with the fix that was previously provided via Pull Request 4630."
diff --git a/hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/migrate/tasks/HapiFhirJpaMigrationTasks.java b/hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/migrate/tasks/HapiFhirJpaMigrationTasks.java
index 886a5d7d555..fe604adb88d 100644
--- a/hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/migrate/tasks/HapiFhirJpaMigrationTasks.java
+++ b/hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/migrate/tasks/HapiFhirJpaMigrationTasks.java
@@ -178,11 +178,11 @@ public class HapiFhirJpaMigrationTasks extends BaseMigrationTasks<VersionEnum> {
 		version.executeRawSql("20230397.1",
 			"update BT2_JOB_INSTANCE " +
 				"set UPDATE_TIME = coalesce(end_time, start_time, create_time, TIMESTAMP '2023-01-01 00:00:00') " +
-				"where UPDATE_TIME is null;");
+				"where UPDATE_TIME is null");
 		version.executeRawSql("20230397.2",
 			"update bt2_work_chunk  " +
 				"set UPDATE_TIME = coalesce(end_time, start_time, create_time, TIMESTAMP '2023-01-01 00:00:00') " +
-				"where UPDATE_TIME is null;");
+				"where UPDATE_TIME is null");
 
 	}