diff --git a/cmd/history.go b/cmd/history.go
index 2149554..25e4cb0 100644
--- a/cmd/history.go
+++ b/cmd/history.go
@@ -48,7 +48,7 @@ func getUnixTime(c pb.RouteGuideClient) int32 {
 	return res.Unixtime
 }
 
-func getHistorical(c pb.RouteGuideClient) {
+func getHistoricalData(c pb.RouteGuideClient, app *Application) {
 
 	var lat, lon, year, month, day int32