diff --git a/error_code.h b/error_code.h
index fe38ba4..dfea0eb 100644
--- a/error_code.h
+++ b/error_code.h
@@ -44,4 +44,26 @@
     kVendorFailure = 200
 };
 
+enum UncryptErrorCode {
+    kUncryptNoError = -1,
+    kUncryptErrorPlaceholder = 50,
+    kUncryptTimeoutError = 100,
+    kUncryptFileRemoveError,
+    kUncryptFileOpenError,
+    kUncryptSocketOpenError,
+    kUncryptSocketWriteError,
+    kUncryptSocketListenError,
+    kUncryptSocketAcceptError,
+    kUncryptFstabReadError,
+    kUncryptFileStatError,
+    kUncryptBlockOpenError,
+    kUncryptIoctlError,
+    kUncryptReadError,
+    kUncryptWriteError,
+    kUncryptFileSyncError,
+    kUncryptFileCloseError,
+    kUncryptFileRenameError,
+    kUncryptPackageMissingError,
+};
+
 #endif