diff --git a/maud/data_model/maud_input.py b/maud/data_model/maud_input.py
index ffc0f305..807215f2 100644
--- a/maud/data_model/maud_input.py
+++ b/maud/data_model/maud_input.py
@@ -66,9 +66,19 @@ def inits_dict(self) -> Dict:
             for p in self.parameters.dict().keys()
             if isinstance(getattr(self.parameters, p), MaudParameter)
         ]
-        for p in params:
-            inits_dict[p.name] = p.inits.inits_unscaled
-            if p.inits.inits_scaled is not None:
-                scaled_pref = "log_" if p.non_negative else ""
-                inits_dict[scaled_pref + p.name + "_z"] = p.inits.inits_scaled
+        for param in params:
+            inits_dict[param.name] = param.inits.inits_unscaled
+            if param.inits.inits_scaled is not None:
+                scaled_pref = "log_" if param.non_negative else ""
+                inits_dict[
+                    scaled_pref + param.name + "_z"
+                ] = param.inits.inits_scaled
+            if param.fixed_ids is not None:
+                inits_dict[param.name + "_free"] = [
+                    v
+                    for k, v in zip(
+                        param.inits.ids[0], param.inits.inits_unscaled
+                    )
+                    if k not in param.fixed_ids[0]
+                ]
         return inits_dict
diff --git a/maud/data_model/maud_parameter.py b/maud/data_model/maud_parameter.py
index 18a60919..a22ea6f3 100644
--- a/maud/data_model/maud_parameter.py
+++ b/maud/data_model/maud_parameter.py
@@ -74,7 +74,7 @@ def fixed_values(self) -> Optional[List[List[float]]]:
             if self.user_input.fixed_values is None:
                 return None
             else:
-                return list(self.user_input.fixed_values.values())
+                return [list(self.user_input.fixed_values.values())]
         else:
             raise ValueError(f"Something wrong with input {self.user_input}")