fix nil map

1 files changed, 3 insertions, 3 deletions

diff --git a/metar/metar.go b/metar/metar.go
index d273e2b..ef7a187 100644
--- a/metar/metar.go
+++ b/metar/metar.go
@@ -202,11 +202,11 @@ type Request struct {
 // MostRecentForEachStation, LatLongRect, RadialDistance, FlightPath,
 // MinDegreeDistance, and Fields.
 func NewRequest(args ...func(*Request)) *Request {
-	var r Request
+	r := &Request{v: make(url.Values)}
 	for _, arg := range args {
-		arg(&r)
+		arg(r)
 	}
-	return &r
+	return r
 }
 
 // StationString sets which station(s) METARs are fetched from. A Station