diff --git a/package.json b/package.json
index eff3ba0..cec9ff1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dicom-microscopy-viewer",
-  "version": "0.48.14",
+  "version": "0.48.15",
   "license": "MIT",
   "author": "ImagingDataCommons",
   "homepage": "https://github.com/imagingdatacommons/dicom-microscopy-viewer#readme",
diff --git a/src/viewer.js b/src/viewer.js
index a9380b3..01b6efa 100644
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -5233,7 +5233,7 @@ class VolumeImageViewer {
       segment.layer.setStyle(newStyle)
     }
 
-    if (segment.q === 'FRACTIONAL') {
+    if (segment.segmentationType === 'FRACTIONAL') {
       this.addSegmentOverlay()
     }
   }