diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java b/org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java
index dff0f9c29..3ed9886c4 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java
@@ -1876,6 +1876,7 @@ private static void checkNotAdvertisedWants(UploadPack up,
 
 		ObjectReader reader = up.getRevWalk().getObjectReader();
 		try (RevWalk walk = new RevWalk(reader)) {
+			walk.setRetainBody(false);
 			// Missing "wants" throw exception here
 			List<RevObject> wantsAsObjs = objectIdsToRevObjects(walk,
 					notAdvertisedWants);