diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackWriter.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackWriter.java
index 2f7e1a656..714e8308f 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackWriter.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackWriter.java
@@ -878,7 +878,7 @@ public class PackWriter implements AutoCloseable {
 	 * already been visited at this depth or shallower, it is not necessary to
 	 * re-visit at this depth.
 	 */
-	private class DepthAwareVisitationPolicy
+	private static class DepthAwareVisitationPolicy
 			implements ObjectWalk.VisitationPolicy {
 		private final Map<ObjectId, Integer> lowestDepthVisited = new HashMap<>();