diff --git a/src/gameservers/templatetags/server_utils.py b/src/gameservers/templatetags/server_utils.py
index 75b5a3e..c62f28d 100644
--- a/src/gameservers/templatetags/server_utils.py
+++ b/src/gameservers/templatetags/server_utils.py
@@ -8,5 +8,7 @@ register = template.Library()
 @register.filter
 def hours_since_now(timestamp):
     delta = timezone.now() - timestamp
+    # Since a datetime.timedelta only stores the delta in days/seconds/ms
+    # we have to convert the seconds to hours.
     return delta.total_seconds() / 3600.0