diff --git a/dbAccess/cif.go b/dbAccess/cif.go
index 0fcf37d..89cb565 100644
--- a/dbAccess/cif.go
+++ b/dbAccess/cif.go
@@ -182,6 +182,12 @@ func CreateTimetableIndexes() error {
 			},
 			Options: options.Index().SetName("find_by_headcode"),
 		},
+		{
+			Keys: bson.M{
+				"serviceDetail.vstp": 1,
+			},
+			Options: options.Index().SetName("vstp"),
+		},
 		// Add index for VSTP to allow deletion of non-VSTP only entries
 	}