diff --git a/SegmentComparison.json b/SegmentComparison.json
new file mode 100644
index 00000000..bd328f91
--- /dev/null
+++ b/SegmentComparison.json
@@ -0,0 +1,9 @@
+{
+  "$schema": "https://raw.githubusercontent.com/Slicer/Slicer/main/Schemas/slicer-extension-catalog-entry-schema-v1.0.1.json#",
+  "build_dependencies": [],
+  "build_subdirectory": ".",
+  "category": "Quantification",
+  "scm_url": "https://github.com/fbrewster/SlicerSegmentComparison.git",
+  "scm_revision": "main",
+  "tier": 3
+}