diff --git a/README.md b/README.md
index 160006b..cb785fb 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@ Example
                             console.log(err);
                         } else {
                             console.log('Protocol(', this.name, '):', protocol);
-                            reader.transmit(new Buffer([0x00, 0xB0, 0x00, 0x00, 0x20]), 40, 1, function(err, data) {
+                            reader.transmit(new Buffer([0x00, 0xB0, 0x00, 0x00, 0x20]), 40, protocol, function(err, data) {
                                 if (err) {
                                     console.log(err);
                                 } else {
diff --git a/examples/example.js b/examples/example.js
index c6b2537..12ed427 100644
--- a/examples/example.js
+++ b/examples/example.js
@@ -30,7 +30,7 @@ pcsc.on('reader', function(reader) {
                         console.log(err);
                     } else {
                         console.log('Protocol(', this.name, '):', protocol);
-                        reader.transmit(new Buffer([0x00, 0xB0, 0x00, 0x00, 0x20]), 40, 1, function(err, data) {
+                        reader.transmit(new Buffer([0x00, 0xB0, 0x00, 0x00, 0x20]), 40, protocol, function(err, data) {
                             if (err) {
                                 console.log(err);
                             } else {
diff --git a/src/cardreader.cpp b/src/cardreader.cpp
index 6b10229..863d2ed 100644
--- a/src/cardreader.cpp
+++ b/src/cardreader.cpp
@@ -416,7 +416,8 @@ void CardReader::DoTransmit(uv_work_t* req) {
     pthread_mutex_lock(&obj->m_mutex);
     /* Connected? */
     if (obj->m_card_handle) {
-        result = SCardTransmit(obj->m_card_handle, SCARD_PCI_T0, ti->in_data, ti->in_len,
+        SCARD_IO_REQUEST send_pci = { ti->card_protocol, sizeof(SCARD_IO_REQUEST) };
+        result = SCardTransmit(obj->m_card_handle, &send_pci, ti->in_data, ti->in_len,
                                &io_request, tr->data, &tr->len);
     }