diff --git a/src/main/java/org/mastodon/mamut/model/ModelSerializer.java b/src/main/java/org/mastodon/mamut/model/ModelSerializer.java
index e2e16c856..afab35997 100644
--- a/src/main/java/org/mastodon/mamut/model/ModelSerializer.java
+++ b/src/main/java/org/mastodon/mamut/model/ModelSerializer.java
@@ -33,7 +33,7 @@
 import org.mastodon.graph.ref.AbstractVertexPool;
 import org.mastodon.pool.PoolObjectAttributeSerializer;
 
-class ModelSerializer implements GraphSerializer< Spot, Link >
+public class ModelSerializer implements GraphSerializer< Spot, Link >
 {
 	private ModelSerializer()
 	{}