diff --git a/src/hash.c b/src/hash.c
index c2324b2..a205bad 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -18,7 +18,7 @@ void hash_data(pub_data *data, unsigned char *buf) {
 // Hash every data contained in data_list then return a network hash
 void hash_network(list *data_list, unsigned char *buf) {
 	// Get list length to initialize concat buffer
-	int concat_len = len_list(data_list) * SHA256_DIGEST_LENGTH;
+	int concat_len = len_list(data_list) * 16;
 	unsigned char *concat = (unsigned char*) malloc(concat_len);
 
 	unsigned char hash[SHA256_DIGEST_LENGTH];