diff --git a/include/nfc/nfc-types.h b/include/nfc/nfc-types.h
index 28f4a21..647ccce 100644
--- a/include/nfc/nfc-types.h
+++ b/include/nfc/nfc-types.h
@@ -282,7 +282,7 @@ typedef enum {
 } nfc_baud_rate;
 
 /**
- * @enum nfc_modulationype
+ * @enum nfc_modulation_type
  * @brief NFC modulation type enumeration
  */
 typedef enum {
@@ -294,14 +294,14 @@ typedef enum {
   NMT_ISO14443B2CT, // ISO14443-2B ASK CTx
   NMT_FELICA,
   NMT_DEP,
-} nfc_modulationype;
+} nfc_modulation_type;
 
 /**
  * @struct nfc_modulation
  * @brief NFC modulation structure
  */
 typedef struct {
-  nfc_modulationype nmt;
+  nfc_modulation_type nmt;
   nfc_baud_rate nbr;
 } nfc_modulation;
 
diff --git a/libnfc/chips/pn53x.c b/libnfc/chips/pn53x.c
index 46b873c..8627622 100644
--- a/libnfc/chips/pn53x.c
+++ b/libnfc/chips/pn53x.c
@@ -318,7 +318,7 @@ pn53x_unwrap_frame (const uint8_t *pbtFrame, const size_t szFrameBits, uint8_t *
 }
 
 bool
-pn53x_decode_target_data (const uint8_t *pbtRawData, size_t szRawData, pn53x_type type, nfc_modulationype nmt,
+pn53x_decode_target_data (const uint8_t *pbtRawData, size_t szRawData, pn53x_type type, nfc_modulation_type nmt,
                           nfc_target_info *pnti)
 {
   uint8_t szAttribRes;
diff --git a/libnfc/chips/pn53x.h b/libnfc/chips/pn53x.h
index 431dd42..e892f0b 100644
--- a/libnfc/chips/pn53x.h
+++ b/libnfc/chips/pn53x.h
@@ -265,7 +265,7 @@ bool    pn53x_wrap_frame (const uint8_t *pbtTx, const size_t szTxBits, const uin
 bool    pn53x_unwrap_frame (const uint8_t *pbtFrame, const size_t szFrameBits, uint8_t *pbtRx, size_t *pszRxBits,
                             uint8_t *pbtRxPar);
 bool    pn53x_decode_target_data (const uint8_t *pbtRawData, size_t szRawData,
-                                  pn53x_type chip_type, nfc_modulationype nmt,
+                                  pn53x_type chip_type, nfc_modulation_type nmt,
                                   nfc_target_info *pnti);
 bool    pn53x_read_register (nfc_device *pnd, uint16_t ui16Reg, uint8_t *ui8Value);
 bool    pn53x_write_register (nfc_device *pnd, uint16_t ui16Reg, uint8_t ui8SymbolMask, uint8_t ui8Value);