diff --git a/src/main/java/bdv/viewer/render/RenderStorage.java b/src/main/java/bdv/viewer/render/RenderStorage.java
index b2cb06f09d69490bc71b19e0ffa9401aa2311005..d98e99f08ba7c9cf87da66f4aa77d920e4f6c2b0 100644
--- a/src/main/java/bdv/viewer/render/RenderStorage.java
+++ b/src/main/java/bdv/viewer/render/RenderStorage.java
@@ -11,7 +11,7 @@ import net.imglib2.type.numeric.ARGBType;
  * <p>
  * Call {@link #checkRenewData} to update number and size of arrays when number of visible sources or screen size changes.
  */
-public class RenderStorage
+class RenderStorage
 {
 	/**
 	 * Storage for mask images of {@link VolatileHierarchyProjector}. One array