diff --git a/src/utils/utils.c b/src/utils/utils.c
index f6487c56e7e7b594d6669b0839865af580ef218c..a15324608d7d16f3f274a0f1f3ea12bed00ccc77 100644
--- a/src/utils/utils.c
+++ b/src/utils/utils.c
@@ -69,25 +69,6 @@ int hex2byte(const char *hex)
 	return (a << 4) | b;
 }
 
-/* convert hex string to byte array */
-unsigned char *strtob(char *str, int len, unsigned char *bytes)
-{
-	size_t i;
-
-	for (i = 0; i < len; i++) {
-		int a;
-
-		a = hex2byte(str);
-		if (a < 0)
-			return NULL;
-
-		str += 2;
-		bytes[i] = a;
-	}
-
-	return bytes;
-}
-
 /* Convert "00:11:22:33:44:55" --> \x001122334455 */
 unsigned char *hwaddr_aton(const char *macstr, unsigned char *mac)
 {
diff --git a/src/utils/utils.h b/src/utils/utils.h
index c81f77295910daad4c97aaed5a251d44bc8cb743..5fb2c52fb4b42102bd6d38d20f289af0d5b4f47b 100644
--- a/src/utils/utils.h
+++ b/src/utils/utils.h
@@ -35,7 +35,6 @@ int hwaddr_from_ip(char *ifname, char *ipstr, unsigned char *hw);
 
 /* bytes from-to hexstring helper functions */
 int hex2byte(const char *hex);
-unsigned char *strtob(char *str, int len, unsigned char *bytes);
 
 /* utility wrappers over json-c functions */
 int json_get_bool(struct json_object *object, const char *key);