diff --git a/bitstamphttp.go b/bitstamphttp.go
index 6fac45e8..75ddb6a4 100644
--- a/bitstamphttp.go
+++ b/bitstamphttp.go
@@ -271,15 +271,13 @@ func (b *Bitstamp) SendAuthenticatedHTTPRequest(path string, values url.Values,
 	values.Set("nonce", nonce)
 	hmac := GetHMAC(sha256.New, []byte(nonce + b.ClientID + b.APIKey), []byte(b.APISecret))
 	values.Set("signature", strings.ToUpper(HexEncodeToString(hmac)))
-	reqBody := strings.NewReader(values.Encode())
-
 	path = BITSTAMP_API_URL + path
 
 	if b.Verbose {
 		log.Println("Sending POST request to " + path)
 	}
 
-	req, err := http.NewRequest("POST", path, reqBody)
+	req, err := http.NewRequest("POST", path,  strings.NewReader(values.Encode()))
 	if err != nil {
 		return err
 	}
diff --git a/btcchinahttp.go b/btcchinahttp.go
index 956913aa..b0b0e395 100644
--- a/btcchinahttp.go
+++ b/btcchinahttp.go
@@ -186,9 +186,7 @@ func (b *BTCChina) SendAuthenticatedHTTPRequest(method string, params []string)
 		log.Printf("Sending POST request to %s calling method %s with params %s\n", "https://api.btcchina.com/api_trade_v1.php", method, data)
 	}
 
-	reqBody := strings.NewReader(string(data))
-
-	req, err := http.NewRequest("POST", "https://api.btcchina.com/api_trade_v1.php", reqBody)
+	req, err := http.NewRequest("POST", "https://api.btcchina.com/api_trade_v1.php", strings.NewReader(string(data)))
 
 	if err != nil {
 		return err
diff --git a/btcehttp.go b/btcehttp.go
index ac18efc5..2862c046 100644
--- a/btcehttp.go
+++ b/btcehttp.go
@@ -179,8 +179,7 @@ func (b *BTCE) SendAuthenticatedHTTPRequest(method string, values url.Values) (e
 		log.Printf("Sending POST request to %s calling method %s with params %s\n", BTCE_API_URL, method, encoded)
 	}
 
-	reqBody := strings.NewReader(encoded)
-	req, err := http.NewRequest("POST", BTCE_API_URL, reqBody)
+	req, err := http.NewRequest("POST", BTCE_API_URL, strings.NewReader(encoded))
 
 	if err != nil {
 		return err
diff --git a/huobihttp.go b/huobihttp.go
index 9ca814d4..805c9518 100644
--- a/huobihttp.go
+++ b/huobihttp.go
@@ -205,8 +205,7 @@ func (h *HUOBI) SendAuthenticatedRequest(method string, v url.Values) (error) {
 		log.Printf("Sending POST request to %s with params %s\n", HUOBI_API_URL, encoded)
 	}
 
-	reqBody := strings.NewReader(encoded)
-	req, err := http.NewRequest("POST", HUOBI_API_URL, reqBody)
+	req, err := http.NewRequest("POST", HUOBI_API_URL, strings.NewReader(encoded))
 
 	if err != nil {
 		return err