diff --git a/docs/changelog.rst b/docs/changelog.rst
index af65d32466..5cce1c2b4b 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -24,6 +24,7 @@ CHANGELOG
 - Apidae tourism parser now handles missing contact properties
 - ApidaeTrekParser now handles missing source website
 - Fix Aggregator does not retrieve unpublished Tour Steps (#3569)"
+- Fix missing Annotation Categories in APIv2 for annotations other than Points (#4032)"
 
 **Documentation**
 
diff --git a/geotrek/api/tests/test_v2.py b/geotrek/api/tests/test_v2.py
index c7829b78f1..41ac39cbfb 100644
--- a/geotrek/api/tests/test_v2.py
+++ b/geotrek/api/tests/test_v2.py
@@ -515,10 +515,34 @@ def setUpTestData(cls):
                         "annotationId": 2,
                         "annotationType": "point",
                     }
+                },
+                {
+                    "type": "Feature",
+                    "geometry": {
+                        "type": "LineString",
+                        "coordinates": [
+                            [
+                                296.59070688800216,
+                                107.85521976008415
+                            ],
+                            [
+                                295.2543114908704,
+                                27.671495932178686
+                            ]
+                        ]
+                    },
+                    "properties": {
+                        "name": "Line 6",
+                        "annotationId": 12345,
+                        "annotationType": "line",
+                    }
                 }
             ]
         }
-        annotations_categories = {'1234': str(cls.annotationcategory.pk)}
+        annotations_categories = {
+            '1234': str(cls.annotationcategory.pk),
+            '12345': str(cls.annotationcategory.pk)
+        }
         cls.hdviewpoint_trek = common_factory.HDViewPointFactory(
             content_object=cls.treks[0],
             annotations=annotations,
@@ -2561,6 +2585,28 @@ def test_hdviewpoint_detail_content(self):
                         "annotationType": "point",
                         "category": None
                     }
+                },
+                {
+                    "type": "Feature",
+                    "geometry": {
+                        "type": "LineString",
+                        "coordinates": [
+                            [
+                                296.59070688800216,
+                                107.85521976008415
+                            ],
+                            [
+                                295.2543114908704,
+                                27.671495932178686
+                            ]
+                        ]
+                    },
+                    "properties": {
+                        "name": "Line 6",
+                        "annotationId": 12345,
+                        "annotationType": "line",
+                        "category": self.annotationcategory.pk
+                    }
                 }
             ]
         }
diff --git a/geotrek/api/v2/serializers.py b/geotrek/api/v2/serializers.py
index d831bf01f4..435cc81b1b 100644
--- a/geotrek/api/v2/serializers.py
+++ b/geotrek/api/v2/serializers.py
@@ -405,8 +405,7 @@ def get_annotations(self, obj):
         annotations_categories = obj.annotations_categories
         for feature in annotations.get("features", []):
             feat_id = feature["properties"]["annotationId"]
-            feat_type = feature["geometry"]["type"]
-            if feat_type == "Point" and str(feat_id) in annotations_categories.keys():
+            if str(feat_id) in annotations_categories.keys():
                 feature["properties"]['category'] = int(annotations_categories[str(feat_id)])
             else:
                 feature["properties"]['category'] = None