diff --git a/packages/SwingSet/test/vat-warehouse/test-reload-snapshot.js b/packages/SwingSet/test/vat-warehouse/test-reload-snapshot.js
index 04c1b17b9818..c09778a2830e 100644
--- a/packages/SwingSet/test/vat-warehouse/test-reload-snapshot.js
+++ b/packages/SwingSet/test/vat-warehouse/test-reload-snapshot.js
@@ -51,50 +51,50 @@ test('vat reload from snapshot', async t => {
   c1.queueToVatRoot('target', 'count', []);
   // * 2: message (count=0)
   // * then we hit snapshotInitial
-  // * 3: save-snapshot
-  // * 4: load-snapshot
+  // * 3: BOYD
+  // * 4: save-snapshot
+  // * 5: load-snapshot
   expected1.push(`count = 0`);
   await c1.run();
   t.deepEqual(c1.dump().log, expected1);
-  t.deepEqual(getPositions(), [3, 4, 5]);
+  t.deepEqual(getPositions(), [4, 5, 6]);
 
   for (let i = 1; i < 11; i += 1) {
     c1.queueToVatRoot('target', 'count', []);
-    // * 5: message (count=1)
-    // * 6: message (count=2)
-    // * 7: message (count=3)
+    // * 6: message (count=1)
+    // * 7: message (count=2)
+    // * 8: message (count=3)
+    // * 9: message (count=4)
     // * then we hit snapshotInterval
-    // * 8: save-snapshot
-    // * 9: load-snapshot
-    // * 10: message (count=4)
-    // * 11: message (count=5)
-    // * 12: message (count=6)
-    // * then we hit snapshotInterval
-    // * 13: save-snapshot
-    // * 14: load-snapshot
+    // * 9: BOYD
+    // * 10: save-snapshot
+    // * 11: load-snapshot
+    // * 12: message (count=5)
+    // * 13: message (count=6)
     // * 15: message (count=7)
     // * 16: message (count=8)
-    // * 17: message (count=9)
     // * then we hit snapshotInterval
+    // * 17: BOYD
     // * 18: save-snapshot
     // * 19: load-snapshot
-    // * 20: message (count=10)
+    // * 20: message (count=9)
+    // * 21: message (count=10)
     expected1.push(`count = ${i}`);
   }
   await c1.run();
   t.deepEqual(c1.dump().log, expected1);
-  t.deepEqual(getPositions(), [18, 19, 21]);
+  t.deepEqual(getPositions(), [18, 19, 22]);
   await c1.shutdown();
 
-  // the worker will start with the load-snapshot at d19, and replay d20
+  // the worker will start with the load-snapshot at d19, and replay d20+d21
   const c2 = await makeSwingsetController(kernelStorage);
-  const expected2 = [`count = 10`];
+  const expected2 = [`count = 9`, `count = 10`];
   t.deepEqual(c2.dump().log, expected2); // replayed 4 deliveries
   c2.queueToVatRoot('target', 'count', []);
-  // * 21: message(count=11)
+  // * 22: message(count=11)
   expected2.push(`count = 11`);
   await c2.run();
   t.deepEqual(c2.dump().log, expected2); // note: *not* 0-11
-  t.deepEqual(getPositions(), [18, 19, 22]);
+  t.deepEqual(getPositions(), [18, 19, 23]);
   await c2.shutdown();
 });
diff --git a/packages/SwingSet/test/xsnap-stable-bundles/test-stable-bundles.js b/packages/SwingSet/test/xsnap-stable-bundles/test-stable-bundles.js
index 1632c2ceef8d..11298438718f 100644
--- a/packages/SwingSet/test/xsnap-stable-bundles/test-stable-bundles.js
+++ b/packages/SwingSet/test/xsnap-stable-bundles/test-stable-bundles.js
@@ -173,11 +173,12 @@ test('xsnap bundles are stable', async t => {
   // snapshotInitial: 2
 
   // now allow the bootstrap message to be delivered as deliveryNum=1,
-  // which should trigger a snapshot, which is recorded in a
-  // save-snapshot as deliveryNum=2
+  // which should trigger a snapshot, which first performs a BOYD in
+  // deliveryNum=2, then the snapshot is recorded in a save-snapshot
+  // as deliveryNum=3
   t.is(snapStore.getSnapshotInfo('v1'), undefined);
   await c2.run();
-  t.is(snapStore.getSnapshotInfo('v1')?.snapPos, 2);
+  t.is(snapStore.getSnapshotInfo('v1')?.snapPos, 3);
   await c2.shutdown;
 
   // now that the worker has a snapshot, the vat preload won't fetch