diff --git a/armsrc/iclass.c b/armsrc/iclass.c
index 87cf97475..61961a3da 100644
--- a/armsrc/iclass.c
+++ b/armsrc/iclass.c
@@ -994,7 +994,8 @@ static bool GetIClassCommandFromReader(uint8_t *received, int *len, int maxLen)
     FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN);
     // clear RXRDY:
     uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
-
+    (void)b;
+            
     while (!BUTTON_PRESS()) {
         WDT_HIT();
 
@@ -1797,7 +1798,8 @@ static int GetIClassAnswer(uint8_t *receivedResponse, int maxLen, int *samples,
 
     // clear RXRDY:
     uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
-
+    (void)b;
+            
     while (!BUTTON_PRESS()) {
         WDT_HIT();