diff --git a/src/rad/resources/schemas/source_detection-1.0.0.yaml b/src/rad/resources/schemas/source_detection-1.0.0.yaml
index 89a0d090..c2da04e3 100644
--- a/src/rad/resources/schemas/source_detection-1.0.0.yaml
+++ b/src/rad/resources/schemas/source_detection-1.0.0.yaml
@@ -3,7 +3,7 @@
 $schema: asdf://stsci.edu/datamodels/roman/schemas/rad_schema-1.0.0
 id: asdf://stsci.edu/datamodels/roman/schemas/source_detection-1.0.0
 
-title: Source catalog generated by the Source Detection Step for TweakReg
+title: Source catalog generated by the Source Detection Step for TweakReg.
 type: object
 properties:
   tweakreg_catalog_name: