diff --git a/core/models/survex.py b/core/models/survex.py
index 207a47f7a..a9eee8f36 100644
--- a/core/models/survex.py
+++ b/core/models/survex.py
@@ -205,7 +205,7 @@ class DrawingFile(models.Model):
     bfontcolours        = models.BooleanField(default=False) # UNUSED now, can be deleted
     manyscansfolders    = models.ManyToManyField("Wallet") # implicitly links via folders to scans to SVX files
     scans               = models.ManyToManyField("SingleScan")  # implicitly links via scans to SVX files
-    tunnelcontains      = models.ManyToManyField("DrawingFile")  # case when its a frame type
+    dwgcontains      = models.ManyToManyField("DrawingFile")  # case when its a frame type
     filesize            = models.IntegerField(default=0)
     npaths              = models.IntegerField(default=0)
     survexfiles         = models.ManyToManyField("SurvexFile")  # direct link to SVX files - not populated yet
diff --git a/parsers/surveys.py b/parsers/surveys.py
index 2e7556133..9bc8ad711 100644
--- a/parsers/surveys.py
+++ b/parsers/surveys.py
@@ -156,7 +156,7 @@ def find_tunnel_scan(dwgfile, path):
             print(message)
             DataIssue.objects.create(parser='Tunnel', message=message)
             rdwgfile = rdwgfilel[0]
-            dwgfile.tunnelcontains.add(rdwgfile)
+            dwgfile.dwgcontains.add(rdwgfile)
 
     dwgfile.save()
 
diff --git a/templates/dwgfiles.html b/templates/dwgfiles.html
index ff3a31ba7..a73f36a8a 100644
--- a/templates/dwgfiles.html
+++ b/templates/dwgfiles.html
@@ -29,7 +29,7 @@
     </td>   
 
     <td style="padding:2px">
-    {% for rdwgfile in dwgfile.tunnelcontains.all %}
+    {% for rdwgfile in dwgfile.dwgcontains.all %}
       <a href="{% url "dwgfilesingle" rdwgfile.dwgpath %}">{{rdwgfile.dwgpath}}</a>
     {% endfor %}
     </td>