diff --git a/src/utils.c b/src/utils.c
index 7bbc5da7a..d389f863c 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -39,7 +39,6 @@
 
 #include <btstack/utils.h>
 #include <stdio.h>
-#include <strings.h>
 
 void bt_store_16(uint8_t *buffer, uint16_t pos, uint16_t value){
     buffer[pos++] = value;
@@ -100,7 +99,9 @@ int sscan_bd_addr(uint8_t * addr_string, bd_addr_t addr){
 	unsigned int bd_addr_buffer[BD_ADDR_LEN];  //for sscanf, integer needed
 	// reset result buffer
 	int i;
-    bzero(bd_addr_buffer, sizeof(bd_addr_buffer));
+    for (i = 0; i < BD_ADDR_LEN; i++) {
+        bd_addr_buffer[i] = 0;
+    }
     
 	// parse
     int result = sscanf( (char *) addr_string, "%2x:%2x:%2x:%2x:%2x:%2x", &bd_addr_buffer[0], &bd_addr_buffer[1], &bd_addr_buffer[2],