diff --git a/jdaviz/configs/mosviz/mosviz.yaml b/jdaviz/configs/mosviz/mosviz.yaml
index b5a846350c..98f842b08b 100644
--- a/jdaviz/configs/mosviz/mosviz.yaml
+++ b/jdaviz/configs/mosviz/mosviz.yaml
@@ -22,6 +22,7 @@ tray:
   - g-gaussian-smooth
   - g-slit-overlay
   - g-model-fitting
+  - g-unit-conversion
   - g-line-list
   - specviz-line-analysis
   - g-export-plot