diff --git a/src/main/java/net/preibisch/stitcher/gui/popup/DisplayOverlapTestPopup.java b/src/main/java/net/preibisch/stitcher/gui/popup/DisplayOverlapTestPopup.java
index dd0dd12..f02a8b1 100644
--- a/src/main/java/net/preibisch/stitcher/gui/popup/DisplayOverlapTestPopup.java
+++ b/src/main/java/net/preibisch/stitcher/gui/popup/DisplayOverlapTestPopup.java
@@ -59,6 +59,7 @@
 import net.preibisch.mvrecon.process.downsampling.DownsampleTools;
 import net.preibisch.mvrecon.process.fusion.FusionTools;
 import net.preibisch.mvrecon.process.fusion.transformed.FusedRandomAccessibleInterval;
+import net.preibisch.mvrecon.process.fusion.transformed.FusedRandomAccessibleInterval.Fusion;
 import net.preibisch.mvrecon.process.fusion.transformed.TransformView;
 import net.preibisch.mvrecon.process.fusion.transformed.TransformVirtual;
 import net.preibisch.mvrecon.process.fusion.transformed.TransformWeight;
@@ -218,7 +219,7 @@ List<RandomAccessibleInterval< FloatType >> openVirtuallyFused(
 				weights.add( TransformWeight.transformBlending( inputImg, border, blending, model, bbSc ) );
 			}
 			
-			openImgs.add( new FusedRandomAccessibleInterval( new FinalInterval( dim ), images, weights ) );
+			openImgs.add( new FusedRandomAccessibleInterval( new FinalInterval( dim ), Fusion.AVG, images, weights ) );
 			
 		}