diff --git a/blockchain/v0.1/blockchain_serialize.c b/blockchain/v0.1/blockchain_serialize.c
index baaf6d2..9681a62 100644
--- a/blockchain/v0.1/blockchain_serialize.c
+++ b/blockchain/v0.1/blockchain_serialize.c
@@ -7,19 +7,22 @@
  * @arg: The file in which the data will be written
  * Return: 0 upon success, or -1 upon failure
  */
-int write_block(llist_node_t ptr, unsigned int idx, void *arg)
+int block_to_file(llist_node_t ptr, unsigned int no, void *file)
 {
-FILE *fp;
 block_t *block = ptr;
-UNUSED(idx);
-fp = (FILE *)arg;
-fwrite((void *)&block->info, sizeof(block->info), 1, fp);
-fwrite((void *)&block->data.len, sizeof(block->data.len), 1, fp);
-fwrite(block->data.buffer, block->data.len, 1, fp);
-fwrite(block->hash, sizeof(block->hash), 1, fp);
-return (0);
+FILE *fptr;
+no = -1;
+if (file) 
+{
+fptr=(FILE*)file;
+fwrite((void *)&block->info, sizeof(block->info), 1, fptr);
+fwrite((void *)&block->data.len, sizeof(block->data.len), 1, fptr);
+fwrite(block->data.buffer, block->data.len, 1, fptr);
+fwrite(block->hash, sizeof(block->hash), 1, fptr);
+return no;
+}
+return 0;
 }
-
 /**
  * blockchain_serialize - a function that serializes a Blockchain into a file
  * @blockchain: pointer to blockchain to be serialized
@@ -28,34 +31,32 @@ return (0);
  * Return: 0 upon success, or -1 upon failure
  */
 
-int blockchain_serialize(blockchain_t const *blockchain,
-			 char const *path)
+int blockchain_serialize(blockchain_t const *blockchain, char const *path) 
 {
 uint8_t hblk_magic[4];
 uint8_t hblk_version[3];
 uint8_t hblk_endian;
 int32_t hblk_blocks;
-FILE *fp;
-if (!blockchain || !path)
+FILE *fptr = fopen(path, "w");
+if (!fptr)
+return (-1);
+if (blockchain && path)
+{
+hblk_blocks = llist_size(blockchain->chain);
+if (hblk_blocks == -1) 
 return (-1);
 memcpy(hblk_magic, "HBLK", 4);
 memcpy(hblk_version, "0.1", 3);
 hblk_endian = _get_endianness();
-hblk_blocks = llist_size(blockchain->chain);
-if (hblk_blocks == -1)
-return (-1);
-fp = fopen(path, "w");
-if (!fp)
-return (-1);
-fwrite(&hblk_magic, sizeof(hblk_magic), 1, fp);
-fwrite(&hblk_version, sizeof(hblk_version), 1, fp);
-fwrite(&hblk_endian, sizeof(hblk_endian), 1, fp);
-fwrite(&hblk_blocks, sizeof(hblk_blocks), 1, fp);
-if (llist_for_each(blockchain->chain, write_block, fp) == -1)
+fwrite(&hblk_magic, sizeof(hblk_magic), 1, fptr);
+fwrite(&hblk_version, sizeof(hblk_version), 1, fptr);
+fwrite(&hblk_endian, sizeof(hblk_endian), 1, fptr);
+fwrite(&hblk_blocks, sizeof(hblk_blocks), 1, fptr);
+if (llist_for_each(blockchain->chain, block_to_file, fptr))
 {
-fclose(fp);
-return (-1);
+fclose(fptr);
+return 0;
 }
-fclose(fp);
-return (0);
 }
+fclose(fptr);
+return -1;