diff --git a/toolkit/components/telemetry/gen_event_data.py b/toolkit/components/telemetry/gen_event_data.py
index 205d7624a389..2e6dba2ae678 100644
--- a/toolkit/components/telemetry/gen_event_data.py
+++ b/toolkit/components/telemetry/gen_event_data.py
@@ -138,7 +138,7 @@ def generate_JSON_definitions(output, *filenames):
             'methods': event.methods,
             'objects': event.objects,
             'extra_keys': event.extra_keys,
-            'record_on_release': True if event.dataset == 'opt-out' else False,
+            'record_on_release': True if event.dataset_short == 'opt-out' else False,
             # We don't expire dynamic-builtin scalars: they're only meant for
             # use in local developer builds anyway. They will expire when rebuilding.
             'expired': False,
diff --git a/toolkit/components/telemetry/gen_scalar_data.py b/toolkit/components/telemetry/gen_scalar_data.py
index e8948266981d..45e1c82cefee 100644
--- a/toolkit/components/telemetry/gen_scalar_data.py
+++ b/toolkit/components/telemetry/gen_scalar_data.py
@@ -110,7 +110,7 @@ def generate_JSON_definitions(output, *filenames):
         scalar_definitions[category][scalar.name] = OrderedDict({
             'kind': scalar.nsITelemetry_kind,
             'keyed': scalar.keyed,
-            'record_on_release': True if scalar.dataset == 'opt-out' else False,
+            'record_on_release': True if scalar.dataset_short == 'opt-out' else False,
             # We don't expire dynamic-builtin scalars: they're only meant for
             # use in local developer builds anyway. They will expire when rebuilding.
             'expired': False,
diff --git a/toolkit/components/telemetry/parse_events.py b/toolkit/components/telemetry/parse_events.py
index 416fa5ee2f55..59c0ecb98d56 100644
--- a/toolkit/components/telemetry/parse_events.py
+++ b/toolkit/components/telemetry/parse_events.py
@@ -271,12 +271,20 @@ class EventData:
     def dataset(self):
         """Get the nsITelemetry constant equivalent for release_channel_collection.
         """
-        rcc = self._definition.get('release_channel_collection', 'opt-in')
+        rcc = self.dataset_short
         if rcc == 'opt-out':
             return 'nsITelemetry::DATASET_RELEASE_CHANNEL_OPTOUT'
         else:
             return 'nsITelemetry::DATASET_RELEASE_CHANNEL_OPTIN'
 
+    @property
+    def dataset_short(self):
+        """Get the short name of the chosen release channel collection policy for the event.
+        """
+        # The collection policy is optional, but we still define a default
+        # behaviour for it.
+        return self._definition.get('release_channel_collection', 'opt-in')
+
     @property
     def extra_keys(self):
         return self._definition.get('extra_keys', {}).keys()
diff --git a/toolkit/components/telemetry/parse_scalars.py b/toolkit/components/telemetry/parse_scalars.py
index 911111c8bd35..37caf3ec4ac2 100755
--- a/toolkit/components/telemetry/parse_scalars.py
+++ b/toolkit/components/telemetry/parse_scalars.py
@@ -276,18 +276,24 @@ class ScalarType:
 
     @property
     def dataset(self):
-        """Get the nsITelemetry constant equivalent to the chose release channel collection
+        """Get the nsITelemetry constant equivalent to the chosen release channel collection
         policy for the scalar.
         """
-        # The collection policy is optional, but we still define a default
-        # behaviour for it.
-        rcc = self._definition.get('release_channel_collection', 'opt-in')
+        rcc = self.dataset_short
         table = {
             'opt-in': 'OPTIN',
             'opt-out': 'OPTOUT',
         }
         return 'nsITelemetry::DATASET_RELEASE_CHANNEL_' + table[rcc]
 
+    @property
+    def dataset_short(self):
+        """Get the short name of the chosen release channel collection policy for the scalar.
+        """
+        # The collection policy is optional, but we still define a default
+        # behaviour for it.
+        return self._definition.get('release_channel_collection', 'opt-in')
+
     @property
     def cpp_guard(self):
         """Get the cpp guard for this scalar"""