diff --git a/render-ws-java-client/src/main/java/org/janelia/render/client/multisem/KensAlignmentStacksClient.java b/render-ws-java-client/src/main/java/org/janelia/render/client/multisem/KensAlignmentStacksClient.java
index 45d664229..d475492d0 100644
--- a/render-ws-java-client/src/main/java/org/janelia/render/client/multisem/KensAlignmentStacksClient.java
+++ b/render-ws-java-client/src/main/java/org/janelia/render/client/multisem/KensAlignmentStacksClient.java
@@ -125,6 +125,7 @@ private void fixTileSpec(final TileSpec tileSpec, final RecapKensAlignment.Trans
         }
 
         tileSpec.setTransforms(transforms);
+        tileSpec.deriveBoundingBox(tileSpec.getMeshCellSize(), true);
     }
 
     // In the original alignment, the scan correction transform was applied with the wrong sign