diff --git a/docs/overrides/main.html b/docs/overrides/main.html
index 69fa1145..fffdca2e 100644
--- a/docs/overrides/main.html
+++ b/docs/overrides/main.html
@@ -5,7 +5,7 @@
   </span>
   Navigate the site here!
 </span>
-<span class="right-margin"> v0.2.2 is released! </span>
+<span class="right-margin"> v0.2.3 is released! </span>
 <span>
   <span class="twemoji">
     {% include ".icons/material/head-question.svg" %}
diff --git a/src/hssm/hssm.py b/src/hssm/hssm.py
index 6c51756c..5934cbe6 100644
--- a/src/hssm/hssm.py
+++ b/src/hssm/hssm.py
@@ -1505,7 +1505,9 @@ def _make_model_distribution(self) -> type[pm.Distribution]:
             bounds=self.bounds,
             lapse=self.lapse,
             extra_fields=(
-                None if not self.extra_fields else deepcopy(self.extra_fields)
+                None
+                if not self.extra_fields
+                else [deepcopy(self.data[field].values) for field in self.extra_fields]
             ),
         )