diff --git a/software/src/darkside.c b/software/src/darkside.c
index 5bc72b9..ecd6674 100644
--- a/software/src/darkside.c
+++ b/software/src/darkside.c
@@ -26,7 +26,7 @@ int main(int argc, char *argv[]) {
     }
     // Initialize UID
     uint32_t uid = (uint32_t)atoui(argv[1]);
-    uint32_t count = 0, i = 0;
+    uint32_t count = 0, i, j;
     uint32_t keycount = 0;
     uint64_t *keylist = NULL, * last_keylist = NULL;
     DarksideParam *dps = NULL;
@@ -84,13 +84,13 @@ int main(int argc, char *argv[]) {
         uint8_t key_tmp[6] = { 0 };
         if (keycount > 0) {
             no_key_recover = false;
-            for (i = 0; i < keycount; i++) {
+            for (j = 0; j < keycount; j++) {
                 if (par_list == 0) {
-                    num_to_bytes(last_keylist[i], 6, key_tmp);
+                    num_to_bytes(last_keylist[j], 6, key_tmp);
                 } else {
-                    num_to_bytes(keylist[i], 6, key_tmp);
+                    num_to_bytes(keylist[j], 6, key_tmp);
                 }
-                printf("Key%d: %02X%02X%02X%02X%02X%02X\r\n", i + 1, key_tmp[0], key_tmp[1], key_tmp[2], key_tmp[3], key_tmp[4], key_tmp[5]);
+                printf("Key%d: %02X%02X%02X%02X%02X%02X\r\n", j + 1, key_tmp[0], key_tmp[1], key_tmp[2], key_tmp[3], key_tmp[4], key_tmp[5]);
             }
         }
     }