diff --git a/conntrackt/models.py b/conntrackt/models.py
--- a/conntrackt/models.py
+++ b/conntrackt/models.py
@@ -178,7 +178,7 @@ class Project(RelatedCollectorMixin, mod
         communications = []
 
         # Process each communication, and add the information to result.
-        for communication in Communication.objects.filter(source__entity__project=self).select_related().order_by("source__entity__pk"):
+        for communication in Communication.objects.filter(source__entity__project=self).select_related():
             communications.append({"source": communication.source.entity.name,
                                    "source_color": entity_colors[communication.source.entity.pk],
                                    "destination": communication.destination.entity.name,