diff --git a/nx/include/switch/services/hidsys.h b/nx/include/switch/services/hidsys.h
index 51d0e445..280aa3cb 100644
--- a/nx/include/switch/services/hidsys.h
+++ b/nx/include/switch/services/hidsys.h
@@ -73,7 +73,7 @@ Result hidsysSetNotificationLedPattern(const HidsysNotificationLedPattern *patte
 
 /**
  * @brief Gets the unique pad's serial number.
- * @param pad_id Id of the unique pad.
+ * @param UniquePadId UniquePadId for the controller.
  * @param serial Pointer to output the serial to. (The buffer size needs to be at least 0x19 bytes)
  */
-Result hidsysGetUniquePadSerialNumber(u64 pad_id, char *serial);
\ No newline at end of file
+Result hidsysGetUniquePadSerialNumber(u64 UniquePadId, char *serial);
diff --git a/nx/source/services/hidsys.c b/nx/source/services/hidsys.c
index ec6acad0..b6a9f6c4 100644
--- a/nx/source/services/hidsys.c
+++ b/nx/source/services/hidsys.c
@@ -300,7 +300,7 @@ Result hidsysSetNotificationLedPattern(const HidsysNotificationLedPattern *patte
     return rc;
 }
 
-Result hidsysGetUniquePadSerialNumber(u64 pad_id, char *serial) {
+Result hidsysGetUniquePadSerialNumber(u64 UniquePadId, char *serial) {
     if (hosversionBefore(5,0,0))
         return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
 
@@ -319,7 +319,7 @@ Result hidsysGetUniquePadSerialNumber(u64 pad_id, char *serial) {
 
     raw->magic = SFCI_MAGIC;
     raw->cmd_id = 809;
-    raw->pad_id = pad_id;
+    raw->pad_id = UniquePadId;
 
     Result rc = serviceIpcDispatch(&g_hidsysSrv);
 
@@ -342,4 +342,4 @@ Result hidsysGetUniquePadSerialNumber(u64 pad_id, char *serial) {
     }
 
     return rc;
-}
\ No newline at end of file
+}