diff --git a/cadc-inventory-db/src/intTest/java/org/opencadc/ArtifactSyncWorkerTest.java b/cadc-inventory-db/src/intTest/java/org/opencadc/vospace/db/ArtifactSyncWorkerTest.java
similarity index 99%
rename from cadc-inventory-db/src/intTest/java/org/opencadc/ArtifactSyncWorkerTest.java
rename to cadc-inventory-db/src/intTest/java/org/opencadc/vospace/db/ArtifactSyncWorkerTest.java
index 608430db..fa18912c 100644
--- a/cadc-inventory-db/src/intTest/java/org/opencadc/ArtifactSyncWorkerTest.java
+++ b/cadc-inventory-db/src/intTest/java/org/opencadc/vospace/db/ArtifactSyncWorkerTest.java
@@ -65,7 +65,7 @@
 ************************************************************************
 */
 
-package org.opencadc;
+package org.opencadc.vospace.db;
 
 import ca.nrc.cadc.db.ConnectionConfig;
 import ca.nrc.cadc.db.DBConfig;
@@ -84,7 +84,7 @@
 import org.junit.Before;
 import org.junit.Test;
 import org.opencadc.inventory.Artifact;
-import org.opencadc.inventory.ArtifactSyncWorker;
+import org.opencadc.vospace.db.ArtifactSyncWorker;
 import org.opencadc.inventory.Namespace;
 import org.opencadc.inventory.db.ArtifactDAO;
 import org.opencadc.inventory.db.HarvestState;
diff --git a/cadc-inventory-db/src/main/java/org/opencadc/inventory/ArtifactSyncWorker.java b/cadc-inventory-db/src/main/java/org/opencadc/vospace/db/ArtifactSyncWorker.java
similarity index 98%
rename from cadc-inventory-db/src/main/java/org/opencadc/inventory/ArtifactSyncWorker.java
rename to cadc-inventory-db/src/main/java/org/opencadc/vospace/db/ArtifactSyncWorker.java
index 7452eca6..29e80384 100644
--- a/cadc-inventory-db/src/main/java/org/opencadc/inventory/ArtifactSyncWorker.java
+++ b/cadc-inventory-db/src/main/java/org/opencadc/vospace/db/ArtifactSyncWorker.java
@@ -65,12 +65,14 @@
 ************************************************************************
  */
 
-package org.opencadc.inventory;
+package org.opencadc.vospace.db;
 
 import ca.nrc.cadc.db.TransactionManager;
 import ca.nrc.cadc.io.ResourceIterator;
 import java.io.IOException;
 import org.apache.log4j.Logger;
+import org.opencadc.inventory.Artifact;
+import org.opencadc.inventory.Namespace;
 import org.opencadc.inventory.db.ArtifactDAO;
 import org.opencadc.inventory.db.HarvestState;
 import org.opencadc.inventory.db.HarvestStateDAO;
diff --git a/cadc-inventory-db/src/main/resources/vospace.Node.sql b/cadc-inventory-db/src/main/resources/vospace.Node.sql
index 3e23b5b2..51e5d646 100644
--- a/cadc-inventory-db/src/main/resources/vospace.Node.sql
+++ b/cadc-inventory-db/src/main/resources/vospace.Node.sql
@@ -8,10 +8,10 @@ create table <schema>.Node (
     ownerID varchar(256) not null,
     isPublic boolean,
     isLocked boolean,
-    readOnlyGroups text,
-    readWriteGroups text,
+    readOnlyGroups text[],
+    readWriteGroups text[],
 
-    -- store all props in a 2D array
+    -- store misc props in a 2D array
     properties text[][],
 
     -- ContainerNode