diff --git a/lemarche/siaes/models.py b/lemarche/siaes/models.py
index 5346f9907..388c8a316 100644
--- a/lemarche/siaes/models.py
+++ b/lemarche/siaes/models.py
@@ -1580,7 +1580,7 @@ class Meta:
 
     @property
     def presta_type_display(self) -> str:
-        return choice_array_to_values(siae_constants.PRESTA_CHOICES, self.presta_type)
+        return choice_array_to_values(siae_constants.PRESTA_CHOICES, self.presta_type) if self.presta_type else ""
 
     @property
     def geo_range_pretty_display(self):
diff --git a/lemarche/templates/siaes/_siae_activity_content.html b/lemarche/templates/siaes/_siae_activity_content.html
index a25a9f6ce..205f8c3fa 100644
--- a/lemarche/templates/siaes/_siae_activity_content.html
+++ b/lemarche/templates/siaes/_siae_activity_content.html
@@ -9,11 +9,13 @@ <h3 class="fr-accordion__title">
         <ul>
             {% siae_sectors_display activity display_max=6 output_format='li' %}
         </ul>
-        <p class="fr-mt-4w">
-            <span class="fr-icon-briefcase-line" aria-hidden="true"></span>
-            <span class="fr-sr-only">Type(s) de prestation :</span>
-            <span>{{ activity.presta_type_display }}</span>
-        </p>
+        {% if activity.presta_type %}
+            <p class="fr-mt-4w">
+                <span class="fr-icon-briefcase-line" aria-hidden="true"></span>
+                <span class="fr-sr-only">Type(s) de prestation :</span>
+                <span>{{ activity.presta_type_display }}</span>
+            </p>
+        {% endif %}
         <p>
             <span class="fr-icon-map-pin-2-line" aria-hidden="true"></span>
             <span class="fr-sr-only">Intervient sur :</span>