diff --git a/main.go b/main.go
index 38d8dd0..75615b2 100644
--- a/main.go
+++ b/main.go
@@ -7,6 +7,7 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"strconv"
 	"strings"
 
 	kingpin "gopkg.in/alecthomas/kingpin.v2"
@@ -44,7 +45,7 @@ func (w weather) formatHeader(req *http.Request, headers map[string]string) *htt
 	req.Header.Set("User-Agent", "curl")
 
 	for key, value := range headers {
-		req.Header.Add(key, value)
+		req.Header.Set(key, value)
 	}
 	return req
 }
@@ -108,45 +109,45 @@ func getWheather(url string, headers map[string]string, download bool) {
 // provided and translate them into uri parameters.
 // This will figure out if we need to download the PNG image
 // as well.
-func generateParamFormat() (string, bool, error) {
+func generateParamFormat(switchesF []*bool, freeStyleF *string, formatF *string, oneLinerF *bool, pngF *bool, addFrameF *bool, transparencyF *int, downloadF *bool) (string, bool, error) {
 	var params strings.Builder
 	var prefix = "?"
-	var downloadMode = *download
+	var downloadMode = *downloadF
 
 	// If --free-syle is specified, let's not bother and simply return it
-	if *freeStyle != "" {
-		return *freeStyle, downloadMode, nil
+	if *freeStyleF != "" {
+		return *freeStyleF, downloadMode, nil
 	}
 
 	// If --format is specified, let's return the format the user wants
-	if *format != "" {
+	if *formatF != "" {
 		var str strings.Builder
 		str.WriteString("?format=\"")
-		str.WriteString(*format)
+		str.WriteString(*formatF)
 		str.WriteString("\"")
 		return str.String(), downloadMode, nil
 	}
 	// If --one-liner is specified, we know the format is set so let's return it
-	if *oneLiner {
+	if *oneLinerF {
 		return "?format=3", downloadMode, nil
 	}
 
-	for i, s := range switches {
+	for i, s := range switchesF {
 		if *s {
 			params.WriteString(switchesFlags[i])
 		}
 	}
 
-	if *png {
+	if *pngF {
 		prefix = "_"
 
-		if *addFrame {
+		if *addFrameF {
 			params.WriteString(switchesFlags[12])
 		}
 
-		if *transparency >= 0 && *transparency <= 255 {
+		if *transparencyF >= 0 && *transparencyF <= 255 {
 			params.WriteString("_transparency=")
-			params.WriteString(string(*transparency))
+			params.WriteString(strconv.Itoa(*transparencyF))
 		}
 
 		params.WriteString(".png")
@@ -313,7 +314,7 @@ func generateURL(domain string, v2 bool, location string, lang string, affix str
 func main() {
 	var domain string = "wttr.in"
 	flagParser()
-	affix, downloadFile, _ := generateParamFormat()
+	affix, downloadFile, _ := generateParamFormat(switches, freeStyle, format, oneLiner, png, addFrame, transparency, download)
 	link, headers := generateURL(domain, *v2, *location, *language, affix)
 	getWheather(link, headers, downloadFile)
 }