diff --git a/include/file.h b/include/file.h
index 1cb67cc..b4011e4 100644
--- a/include/file.h
+++ b/include/file.h
@@ -8,6 +8,10 @@
 #include <sys/stat.h>
 #include <math.h>
 #include <zlib.h>
+#include <errno.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <fcntl.h>
 
 #ifdef _WIN32
 #include <windows.h>
@@ -23,6 +27,8 @@
 
 #include "hash.h"
 #include "list.h"
+#include "action_list.h"
+#include "common.h"
 
 typedef struct {
     char** content;
@@ -37,6 +43,11 @@ typedef struct {
 
 typedef List FileInfoBuffer;
 
+typedef struct {
+    uint32_t insertions;
+    uint32_t deletions;
+} Changes;
+
 File* new_empty_file();
 File* new_file(const char*);
 File* from_string(char*);