diff --git a/src/rad/resources/schemas/wfi_mosaic-1.0.0.yaml b/src/rad/resources/schemas/wfi_mosaic-1.0.0.yaml
index 3beaeb28..ad4620d2 100644
--- a/src/rad/resources/schemas/wfi_mosaic-1.0.0.yaml
+++ b/src/rad/resources/schemas/wfi_mosaic-1.0.0.yaml
@@ -22,12 +22,16 @@ properties:
             tag: asdf://stsci.edu/datamodels/roman/tags/mosaic_basic-1.0.0
           cal_step:
             tag: asdf://stsci.edu/datamodels/roman/tags/cal_step-1.0.0
+          coordinates:
+            tag: asdf://stsci.edu/datamodels/roman/tags/coordinates-1.0.0
           individual_image_meta:
             tag: asdf://stsci.edu/datamodels/roman/tags/individual_image_meta-1.0.0
           photometry:
             tag: asdf://stsci.edu/datamodels/roman/tags/photometry-1.0.0
           program:
             tag: asdf://stsci.edu/datamodels/roman/tags/program-1.0.0
+          ref_file:
+            tag: asdf://stsci.edu/datamodels/roman/tags/ref_file-1.0.0
           resample:
             tag: asdf://stsci.edu/datamodels/roman/tags/resample-1.0.0
           wcs: