diff --git a/include/nfc/nfc.h b/include/nfc/nfc.h
index 544dfb3..22f906d 100644
--- a/include/nfc/nfc.h
+++ b/include/nfc/nfc.h
@@ -84,9 +84,9 @@ extern  "C" {
   NFC_EXPORT int nfc_initiator_poll_dep_target(nfc_device *pnd, const nfc_dep_mode ndm, const nfc_baud_rate nbr, const nfc_dep_info *pndiInitiator, nfc_target *pnt, const int timeout);
   NFC_EXPORT int nfc_initiator_deselect_target(nfc_device *pnd);
   NFC_EXPORT int nfc_initiator_transceive_bytes(nfc_device *pnd, const uint8_t *pbtTx, const size_t szTx, uint8_t *pbtRx, const size_t szRx, int timeout);
-  NFC_EXPORT int nfc_initiator_transceive_bits(nfc_device *pnd, const uint8_t *pbtTx, const size_t szTxBits, const uint8_t *pbtTxPar, uint8_t *pbtRx, uint8_t *pbtRxPar);
+  NFC_EXPORT int nfc_initiator_transceive_bits(nfc_device *pnd, const uint8_t *pbtTx, const size_t szTxBits, const uint8_t *pbtTxPar, uint8_t *pbtRx, const size_t szRx, uint8_t *pbtRxPar);
   NFC_EXPORT int nfc_initiator_transceive_bytes_timed(nfc_device *pnd, const uint8_t *pbtTx, const size_t szTx, uint8_t *pbtRx, const size_t szRx, uint32_t *cycles);
-  NFC_EXPORT int nfc_initiator_transceive_bits_timed(nfc_device *pnd, const uint8_t *pbtTx, const size_t szTxBits, const uint8_t *pbtTxPar, uint8_t *pbtRx, uint8_t *pbtRxPar, uint32_t *cycles);
+  NFC_EXPORT int nfc_initiator_transceive_bits_timed(nfc_device *pnd, const uint8_t *pbtTx, const size_t szTxBits, const uint8_t *pbtTxPar, uint8_t *pbtRx, const size_t szRx, uint8_t *pbtRxPar, uint32_t *cycles);
   NFC_EXPORT int nfc_initiator_target_is_present(nfc_device *pnd, const nfc_target nt);
 
   /* NFC target: act as tag (i.e. MIFARE Classic) or NFC target device. */
diff --git a/libnfc/nfc.c b/libnfc/nfc.c
index 638726b..eb659bb 100644
--- a/libnfc/nfc.c
+++ b/libnfc/nfc.c
@@ -678,8 +678,10 @@ nfc_initiator_transceive_bytes(nfc_device *pnd, const uint8_t *pbtTx, const size
  * CRC bytes. Using this feature you are able to simulate these frames.
  */
 int
-nfc_initiator_transceive_bits(nfc_device *pnd, const uint8_t *pbtTx, const size_t szTxBits, const uint8_t *pbtTxPar,
-                              uint8_t *pbtRx, uint8_t *pbtRxPar)
+nfc_initiator_transceive_bits(nfc_device *pnd, 
+                              const uint8_t *pbtTx, const size_t szTxBits, const uint8_t *pbtTxPar,
+                              uint8_t *pbtRx, const size_t szRx,
+                              uint8_t *pbtRxPar)
 {
   HAL(initiator_transceive_bits, pnd, pbtTx, szTxBits, pbtTxPar, pbtRx, pbtRxPar);
 }
@@ -705,7 +707,10 @@ nfc_initiator_transceive_bits(nfc_device *pnd, const uint8_t *pbtTx, const size_
  * @warning The configuration option \a NP_HANDLE_PARITY must be set to \c true (the default value).
  */
 int
-nfc_initiator_transceive_bytes_timed(nfc_device *pnd, const uint8_t *pbtTx, const size_t szTx, uint8_t *pbtRx, const size_t szRx, uint32_t *cycles)
+nfc_initiator_transceive_bytes_timed(nfc_device *pnd, 
+                                     const uint8_t *pbtTx, const size_t szTx, 
+                                     uint8_t *pbtRx, const size_t szRx,
+                                     uint32_t *cycles)
 {
   HAL(initiator_transceive_bytes_timed, pnd, pbtTx, szTx, pbtRx, szRx, cycles);
 }
@@ -746,8 +751,11 @@ nfc_initiator_target_is_present(nfc_device *pnd, const nfc_target nt)
  * @warning The configuration option \a NP_HANDLE_PARITY must be set to \c true (the default value).
  */
 int
-nfc_initiator_transceive_bits_timed(nfc_device *pnd, const uint8_t *pbtTx, const size_t szTxBits, const uint8_t *pbtTxPar,
-                                    uint8_t *pbtRx, uint8_t *pbtRxPar, uint32_t *cycles)
+nfc_initiator_transceive_bits_timed(nfc_device *pnd, 
+                                    const uint8_t *pbtTx, const size_t szTxBits, const uint8_t *pbtTxPar,
+                                    uint8_t *pbtRx, const size_t szRx, 
+                                    uint8_t *pbtRxPar, 
+                                    uint32_t *cycles)
 {
   HAL(initiator_transceive_bits_timed, pnd, pbtTx, szTxBits, pbtTxPar, pbtRx, pbtRxPar, cycles);
 }