diff --git a/libnfc/chips/pn53x.c b/libnfc/chips/pn53x.c
index e8bfd59..c65022b 100644
--- a/libnfc/chips/pn53x.c
+++ b/libnfc/chips/pn53x.c
@@ -327,7 +327,7 @@ pn53x_unwrap_frame (const uint8_t *pbtFrame, const size_t szFrameBits, uint8_t *
   }
 }
 
-bool
+int
 pn53x_decode_target_data (const uint8_t *pbtRawData, size_t szRawData, pn53x_type type, nfc_modulation_type nmt,
                           nfc_target_info *pnti)
 {
@@ -402,7 +402,7 @@ pn53x_decode_target_data (const uint8_t *pbtRawData, size_t szRawData, pn53x_typ
       // Skip V & T Addresses
       pbtRawData++;
       if (*pbtRawData != 0x07) { // 0x07 = REPGEN 
-        return false;
+        return NFC_ECHIP;
       }
       pbtRawData++;
       // Store the UID
@@ -465,10 +465,10 @@ pn53x_decode_target_data (const uint8_t *pbtRawData, size_t szRawData, pn53x_typ
       memcpy (pnti->nji.btId, pbtRawData, 4);
       break;
     default:
-      return false;
+      return NFC_ECHIP;
       break;
   }
-  return true;
+  return NFC_SUCCESS;
 }
 
 int
diff --git a/libnfc/chips/pn53x.h b/libnfc/chips/pn53x.h
index b5c5e08..d53e732 100644
--- a/libnfc/chips/pn53x.h
+++ b/libnfc/chips/pn53x.h
@@ -270,7 +270,7 @@ int    pn53x_set_parameters (struct nfc_device *pnd, const uint8_t ui8Value, con
 int    pn53x_set_tx_bits (struct nfc_device *pnd, const uint8_t ui8Bits);
 int    pn53x_wrap_frame (const uint8_t *pbtTx, const size_t szTxBits, const uint8_t *pbtTxPar, uint8_t *pbtFrame);
 int    pn53x_unwrap_frame (const uint8_t *pbtFrame, const size_t szFrameBits, uint8_t *pbtRx, uint8_t *pbtRxPar);
-bool    pn53x_decode_target_data (const uint8_t *pbtRawData, size_t szRawData,
+int    pn53x_decode_target_data (const uint8_t *pbtRawData, size_t szRawData,
                                   pn53x_type chip_type, nfc_modulation_type nmt,
                                   nfc_target_info *pnti);
 int    pn53x_read_register (struct nfc_device *pnd, uint16_t ui16Reg, uint8_t *ui8Value);