diff --git a/argopy/data_fetchers/erddap_data_processors.py b/argopy/data_fetchers/erddap_data_processors.py
index 58c50e21..f63a1381 100644
--- a/argopy/data_fetchers/erddap_data_processors.py
+++ b/argopy/data_fetchers/erddap_data_processors.py
@@ -76,7 +76,6 @@ def pre_process(
         Fetched_url = this_ds.attrs.get("Fetched_uri")
     else:
         Fetched_url = this_ds.attrs.get("history", "").split('\n')[-1].split(' ')[-1]
-    Fetched_constraints = UriCName(Fetched_url)
 
     # Finally overwrite erddap attributes with those from argopy:
     raw_attrs = this_ds.attrs.copy()
@@ -104,7 +103,7 @@ def pre_process(
     this_ds.attrs["Fetched_date"] = pd.to_datetime("now", utc=True).strftime(
         "%Y/%m/%d"
     )
-    this_ds.attrs["Fetched_constraints"] = Fetched_constraints
+    this_ds.attrs["Fetched_constraints"] = UriCName(Fetched_url).cname
     this_ds.attrs["Fetched_uri"] = Fetched_url
     this_ds = this_ds[np.sort(this_ds.data_vars)]
 
diff --git a/docs/whats-new.rst b/docs/whats-new.rst
index 31d7f3c0..74bde562 100644
--- a/docs/whats-new.rst
+++ b/docs/whats-new.rst
@@ -8,6 +8,16 @@ What's New
 |pypi dwn| |conda dwn|
 
 
+
+Coming up next
+--------------
+
+Internals
+^^^^^^^^^
+
+- Fix bug raising an error when exporting a dataset to netcdf after erddap fetch, :issue:`412`. (:pr:`413`) by `G. Maze <http://www.github.com/gmaze>`_.
+
+
 v1.0.0 (16 Oct. 2024)
 ---------------------