diff --git a/migrations/20181128220107-add-tantalisID-index.js b/migrations/20181128220107-add-tantalisID-index.js
new file mode 100644
index 0000000..dade372
--- /dev/null
+++ b/migrations/20181128220107-add-tantalisID-index.js
@@ -0,0 +1,43 @@
+'use strict';
+
+var dbm;
+var type;
+var seed;
+
+/**
+  * We receive the dbmigrate dependency from dbmigrate initially.
+  * This enables us to not have to rely on NODE_PATH.
+  */
+exports.setup = function(options, seedLink) {
+  dbm = options.dbmigrate;
+  type = dbm.dataType;
+  seed = seedLink;
+};
+
+exports.up = function(db) {
+  return db.addIndex( 'applications',
+                      'tantalisIDIndex',
+                      { tantalisID: 1 },
+                      true,
+                      function (err) {
+                        if (err) {
+                          console.log('DB Up: featureGeometryIndex err:', err);
+                        }
+                      }
+  );
+};
+
+exports.down = function(db) {
+  return db.removeIndex( 'applications',
+                         'tantalisIDIndex',
+                         function (err) {
+                          if (err) {
+                            console.log('DB Down: featureGeometryIndex err:', err);
+                          }
+                        }
+  );
+};
+
+exports._meta = {
+  "version": 1
+};