diff --git a/wolfcrypt/src/port/atmel/atmel.c b/wolfcrypt/src/port/atmel/atmel.c
index 340b52d2e..dbd5cc8fd 100644
--- a/wolfcrypt/src/port/atmel/atmel.c
+++ b/wolfcrypt/src/port/atmel/atmel.c
@@ -308,7 +308,7 @@ static int atmel_init_enc_key(void)
 	return ret;
 }
 
-int atmel_get_rev_info(byte* revision)
+int atmel_get_rev_info(word32* revision)
 {
     int ret;
     ret = atcab_info((uint8_t*)revision);
@@ -319,7 +319,7 @@ int atmel_get_rev_info(byte* revision)
 void atmel_show_rev_info(void)
 {
 #ifdef WOLFSSL_ATECC508A_DEBUG
-    byte revision = 0;
+    word32 revision = 0;
     atmel_get_rev_info(&revision);
     printf("ATECC508A Revision: %x\n", (word32)revision);
 #endif
diff --git a/wolfssl/wolfcrypt/port/atmel/atmel.h b/wolfssl/wolfcrypt/port/atmel/atmel.h
index 479a89250..9b5b1b858 100644
--- a/wolfssl/wolfcrypt/port/atmel/atmel.h
+++ b/wolfssl/wolfcrypt/port/atmel/atmel.h
@@ -94,7 +94,7 @@ int atmel_set_slot_allocator(atmel_slot_alloc_cb alloc,
     atmel_slot_dealloc_cb dealloc);
 
 int  atmel_ecc_translate_err(int status);
-int  atmel_get_rev_info(byte* revision);
+int  atmel_get_rev_info(word32* revision);
 void atmel_show_rev_info(void);
 
 /* The macro ATECC_GET_ENC_KEY can be set to override the default