diff --git a/src/pint/modelutils.py b/src/pint/modelutils.py
index f5b045e27..14cead276 100644
--- a/src/pint/modelutils.py
+++ b/src/pint/modelutils.py
@@ -71,7 +71,7 @@ def model_equatorial_to_ecliptic(
 
     Returns
     -------
-    model
+    model : `pint.models.TimingModel`
         new model with AstrometryEcliptic component
     """