diff --git a/modules/flowable-engine/src/main/java/org/flowable/engine/impl/migration/ProcessInstanceMigrationDocumentBuilderImpl.java b/modules/flowable-engine/src/main/java/org/flowable/engine/impl/migration/ProcessInstanceMigrationDocumentBuilderImpl.java
index 6ba54df9942..52310f28e52 100644
--- a/modules/flowable-engine/src/main/java/org/flowable/engine/impl/migration/ProcessInstanceMigrationDocumentBuilderImpl.java
+++ b/modules/flowable-engine/src/main/java/org/flowable/engine/impl/migration/ProcessInstanceMigrationDocumentBuilderImpl.java
@@ -129,7 +129,7 @@ public ProcessInstanceMigrationDocument build() {
             if (migrateToProcessDefinitionKey == null) {
                 throw new FlowableException("Process definition key cannot be null");
             }
-            if (migrateToProcessDefinitionVersion == null || migrateToProcessDefinitionVersion < 0) {
+            if (migrateToProcessDefinitionVersion != null && migrateToProcessDefinitionVersion < 0) {
                 throw new FlowableException("Process definition version must be a positive number");
             }
         }