diff --git a/assignment-client/src/octree/OctreeServer.cpp b/assignment-client/src/octree/OctreeServer.cpp
index e78f9f108b..6704786c36 100644
--- a/assignment-client/src/octree/OctreeServer.cpp
+++ b/assignment-client/src/octree/OctreeServer.cpp
@@ -1193,7 +1193,7 @@ void OctreeServer::handleOctreeDataFileReply(QSharedPointer<ReceivedMessage> mes
 
                 QFile file(_persistAbsoluteFilePath);
                 if (file.open(QIODevice::WriteOnly)) {
-                    auto entityData = data.toByteArray();
+                    auto entityData = data.toGzippedByteArray();
                     file.write(entityData);
                     file.close();
                 } else {
diff --git a/libraries/octree/src/OctreeUtils.cpp b/libraries/octree/src/OctreeUtils.cpp
index d8925a10ca..e068e83b23 100644
--- a/libraries/octree/src/OctreeUtils.cpp
+++ b/libraries/octree/src/OctreeUtils.cpp
@@ -152,3 +152,15 @@ QByteArray OctreeUtils::RawOctreeData::toByteArray() {
 
     return doc.toJson();
 }
+
+QByteArray OctreeUtils::RawOctreeData::toGzippedByteArray() {
+    auto data = toByteArray();
+    QByteArray gzData;
+
+    if (!gzip(data, gzData, -1)) {
+        qCritical("Unable to gzip data while converting json.");
+        return QByteArray();
+    }
+
+    return gzData;
+}
\ No newline at end of file
diff --git a/libraries/octree/src/OctreeUtils.h b/libraries/octree/src/OctreeUtils.h
index e5c7b617cd..18b0d27883 100644
--- a/libraries/octree/src/OctreeUtils.h
+++ b/libraries/octree/src/OctreeUtils.h
@@ -31,6 +31,7 @@ public:
     QJsonArray octreeData;
 
     QByteArray toByteArray();
+    QByteArray toGzippedByteArray();
 };
 
 bool readOctreeFile(QString path, QJsonDocument* doc);