diff --git a/templates/viewer.html b/templates/viewer.html
index a650284..c466083 100644
--- a/templates/viewer.html
+++ b/templates/viewer.html
@@ -45,9 +45,14 @@
         {% for face in objs[id].file_details.faces %}
             data = {
                 'id': '{{face.id}}',
-                'x': '{{face.tmp_locn[3]}}', 'y': '{{face.tmp_locn[0]}}',
-                'w': '{{face.tmp_locn[1]-face.tmp_locn[3]}}', 'h':'{{face.tmp_locn[2]-face.tmp_locn[0]}}'
-                }
+                {% if face.tmp_locn %}
+                    'x': '{{face.tmp_locn[3]}}', 'y': '{{face.tmp_locn[0]}}',
+                    'w': '{{face.tmp_locn[1]-face.tmp_locn[3]}}', 'h':'{{face.tmp_locn[2]-face.tmp_locn[0]}}'
+                {% else %}
+                    'x': '0', 'y': '0',
+                    'w': '1', 'h':'1'
+                {% endif %}
+            }
             {% if face.refimg %}
                 data['who']='{{face.refimg.person.tag}}'
                 data['distance']="{{face.refimg_lnk.face_distance|round(2)}}"