diff --git a/docs/changelog.rst b/docs/changelog.rst
index 27fd29bd5c..b74c187b79 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -9,10 +9,7 @@ CHANGELOG
 
 - Fix OptionalRangeFilter and CustomDateFromToRangeFilter labels translation (fixes #3852)
 - Fix crash on migrate when db username or dbname contains dash
-
-**Improvements**
-
-- Add `report` model on Intervention filters in module list (#3972)
+- Change label filter intervention contractors and filter null value on project contractors detail view (#3820)
 
 **Documentation**
 
@@ -21,6 +18,7 @@ CHANGELOG
 **Improvements**
 
 - Remove unused `postgres` volume in docker compose file for production
+- Add `report` model on Intervention filters in module list (#3972)
 
 
 2.104.2 (2024-04-04)
diff --git a/geotrek/maintenance/filters.py b/geotrek/maintenance/filters.py
index 8e6937b798..e47f59cfaa 100644
--- a/geotrek/maintenance/filters.py
+++ b/geotrek/maintenance/filters.py
@@ -182,7 +182,7 @@ class ProjectFilterSet(StructureRelatedFilterSet):
     district = ProjectIntersectionFilterDistrict(label=_('District'), lookup_expr='intersects', required=False)
     area_type = ProjectIntersectionFilterRestrictedAreaType(label=_('Restricted area type'), lookup_expr='intersects', required=False)
     area = ProjectIntersectionFilterRestrictedArea(label=_('Restricted area'), lookup_expr='intersects', required=False)
-    contractors = ModelMultipleChoiceFilter(label=_("Intervention contractors"), queryset=Contractor.objects.all(), method='filter_contractors')
+    contractors = ModelMultipleChoiceFilter(label=_("Contractors"), queryset=Contractor.objects.all(), method='filter_contractors')
 
     class Meta(StructureRelatedFilterSet.Meta):
         model = Project
diff --git a/geotrek/maintenance/models.py b/geotrek/maintenance/models.py
index d93db6eefa..29f2773c39 100755
--- a/geotrek/maintenance/models.py
+++ b/geotrek/maintenance/models.py
@@ -553,7 +553,7 @@ def interventions_csv_display(self):
     @property
     def intervention_contractors(self):
         return self.interventions.aggregate(
-            intervention_contractors=ArrayAgg('contractors__contractor', distinct=True))['intervention_contractors']
+            intervention_contractors=ArrayAgg('contractors__contractor', distinct=True, filter=Q(contractors__isnull=False)))['intervention_contractors']
 
     @classproperty
     def intervention_contractors_verbose_name(cls):