diff --git a/examples/nfc-anticol.c b/examples/nfc-anticol.c
index 8d6921f..0fa4e03 100644
--- a/examples/nfc-anticol.c
+++ b/examples/nfc-anticol.c
@@ -83,7 +83,7 @@ transmit_bits(const uint8_t *pbtTx, const size_t szTxBits)
     print_hex_bits(pbtTx, szTxBits);
   }
   // Transmit the bit frame command, we don't use the arbitrary parity feature
-  if ((szRxBits = nfc_initiator_transceive_bits(pnd, pbtTx, szTxBits, NULL, abtRx, NULL)) < 0)
+  if ((szRxBits = nfc_initiator_transceive_bits(pnd, pbtTx, szTxBits, NULL, abtRx, sizeof(abtRx), NULL)) < 0)
     return false;
 
   // Show received answer
diff --git a/examples/nfc-mfsetuid.c b/examples/nfc-mfsetuid.c
index d1b5b14..5c23785 100644
--- a/examples/nfc-mfsetuid.c
+++ b/examples/nfc-mfsetuid.c
@@ -95,7 +95,7 @@ transmit_bits(const uint8_t *pbtTx, const size_t szTxBits)
     print_hex_bits(pbtTx, szTxBits);
   }
   // Transmit the bit frame command, we don't use the arbitrary parity feature
-  if ((szRxBits = nfc_initiator_transceive_bits(pnd, pbtTx, szTxBits, NULL, abtRx, NULL)) < 0)
+  if ((szRxBits = nfc_initiator_transceive_bits(pnd, pbtTx, szTxBits, NULL, abtRx, sizeof(abtRx), NULL)) < 0)
     return false;
 
   // Show received answer
diff --git a/examples/nfc-relay.c b/examples/nfc-relay.c
index be30585..b728c57 100644
--- a/examples/nfc-relay.c
+++ b/examples/nfc-relay.c
@@ -205,7 +205,7 @@ main(int argc, char *argv[])
       }
       // Forward the frame to the original tag
       if ((szTagRxBits = nfc_initiator_transceive_bits
-                         (pndReader, abtReaderRx, (size_t) szReaderRxBits, abtReaderRxPar, abtTagRx, abtTagRxPar)) > 0) {
+                         (pndReader, abtReaderRx, (size_t) szReaderRxBits, abtReaderRxPar, abtTagRx, sizeof(abtTagRx), abtTagRxPar)) > 0) {
         // Redirect the answer back to the reader
         if (nfc_target_send_bits(pndTag, abtTagRx, szTagRxBits, abtTagRxPar) < 0) {
           nfc_perror(pndTag, "nfc_target_send_bits");
diff --git a/libnfc/nfc.c b/libnfc/nfc.c
index 7c12087..48fb2ea 100644
--- a/libnfc/nfc.c
+++ b/libnfc/nfc.c
@@ -120,7 +120,7 @@ nfc_init(nfc_context *context)
 /** @ingroup lib
  * @brief Deinitialize libnfc.
  * Should be called after closing all open devices and before your application terminates.
- *@param context The context to deinitialize
+ * @param context The context to deinitialize
  */
 void
 nfc_exit(nfc_context *context)
@@ -684,6 +684,7 @@ nfc_initiator_transceive_bits(nfc_device *pnd,
                               uint8_t *pbtRx, const size_t szRx,
                               uint8_t *pbtRxPar)
 {
+  (void)szRx;
   HAL(initiator_transceive_bits, pnd, pbtTx, szTxBits, pbtTxPar, pbtRx, pbtRxPar);
 }
 
@@ -764,6 +765,7 @@ nfc_initiator_transceive_bits_timed(nfc_device *pnd,
                                     uint8_t *pbtRxPar, 
                                     uint32_t *cycles)
 {
+  (void)szRx;
   HAL(initiator_transceive_bits_timed, pnd, pbtTx, szTxBits, pbtTxPar, pbtRx, pbtRxPar, cycles);
 }
 
diff --git a/utils/nfc-mfclassic.c b/utils/nfc-mfclassic.c
index 79f14e5..e3dc96f 100644
--- a/utils/nfc-mfclassic.c
+++ b/utils/nfc-mfclassic.c
@@ -98,7 +98,7 @@ transmit_bits(const uint8_t *pbtTx, const size_t szTxBits)
   printf("Sent bits:     ");
   print_hex_bits(pbtTx, szTxBits);
   // Transmit the bit frame command, we don't use the arbitrary parity feature
-  if ((szRxBits = nfc_initiator_transceive_bits(pnd, pbtTx, szTxBits, NULL, abtRx, NULL)) < 0)
+  if ((szRxBits = nfc_initiator_transceive_bits(pnd, pbtTx, szTxBits, NULL, abtRx, sizeof(abtRx), NULL)) < 0)
     return false;
 
   // Show received answer