2 files changed, 3 insertions, 3 deletions
diff --git a/src/class/cdc/cdc_device.c b/src/class/cdc/cdc_device.c
index 0a7691916..f5853fddb 100644
--- a/src/class/cdc/cdc_device.c
+++ b/src/class/cdc/cdc_device.c
@@ -146,9 +146,9 @@ uint32_t tud_cdc_n_read(uint8_t itf, void* buffer, uint32_t bufsize)
   return num_read;
 }
 
-bool tud_cdc_n_peek(uint8_t itf, int pos, uint8_t* chr)
+bool tud_cdc_n_peek(uint8_t itf, uint8_t* chr)
 {
-  return tu_fifo_peek_at(&_cdcd_itf[itf].rx_ff, pos, chr);
+  return tu_fifo_peek(&_cdcd_itf[itf].rx_ff, chr);
 }
 
 void tud_cdc_n_read_flush (uint8_t itf)
diff --git a/src/class/cdc/cdc_device.h b/src/class/cdc/cdc_device.h
index 0885922c6..2566798c5 100644
--- a/src/class/cdc/cdc_device.h
+++ b/src/class/cdc/cdc_device.h
@@ -83,7 +83,7 @@ int32_t  tud_cdc_n_read_char       (uint8_t itf);
 void     tud_cdc_n_read_flush      (uint8_t itf);
 
 // Get a byte from FIFO at the specified position without removing it
-bool     tud_cdc_n_peek            (uint8_t itf, int pos, uint8_t* u8);
+bool     tud_cdc_n_peek            (uint8_t itf, uint8_t* u8);
 
 // Write bytes to TX FIFO, data may remain in the FIFO for a while
 uint32_t tud_cdc_n_write           (uint8_t itf, void const* buffer, uint32_t bufsize);