diff --git a/index.js b/index.js
index c335fec..8ba6ef0 100644
--- a/index.js
+++ b/index.js
@@ -6,7 +6,7 @@ projects = {
     },
     "IDF":{
         "line_list":"https://raw.githubusercontent.com/Jungle-Bus/ref-fr-STIF/gh-pages/data/lignes.csv",
-        "format": "osm-transit-extractor",
+        "format": "prism",
         "qa": true
     },
     "Kochi":{
diff --git a/line_data.js b/line_data.js
index f7a586c..0452812 100644
--- a/line_data.js
+++ b/line_data.js
@@ -45,7 +45,9 @@ var line_data = (function() {
                     }
                 }
                 
-                if (line_tags['type'] != 'route_master') {
+                if (line_tags['type'] == 'route') {
+                    return "This is not a public transport line, it is a trip. Try again using its parent relation"
+                } else if (line_tags['type'] != 'route_master') {
                     return "This is not a public transport line"
                 }