diff --git a/src/tree.c b/src/tree.c
index 36287d4..0a6a80e 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -62,6 +62,13 @@ void snapshot_tree(FileInfoBuffer* tree, char* hash) {
     mkdir(dir_path, 0755);
     snprintf(file_path, sizeof(file_path), "%s/%s", dir_path, hash+2);
 
+    if (access(file_path, F_OK) == 0) {
+        free(tmp);
+        file_info_buffer_free(files);
+        free(root);
+        return;
+    }
+
     FILE* fp = fopen(file_path, "wb");
     if (!fp) { 
         perror("ERROR: cannot open path in snapshot_tree!");