diff --git a/src/mu-error.h b/src/mu-error.h
index 3feaed5f..1a605d17 100644
--- a/src/mu-error.h
+++ b/src/mu-error.h
@@ -38,10 +38,14 @@ enum _MuError {
 
 	/* File errors */
 	MU_ERROR_FILE_INVALID_SOURCE,
+	MU_ERROR_FILE_INVALID_NAME,
 	MU_ERROR_FILE_CANNOT_LINK,
 	MU_ERROR_FILE_CANNOT_OPEN,
+	MU_ERROR_FILE_CANNOT_READ,
 	MU_ERROR_FILE_CANNOT_CREATE,
 	MU_FILE_ERROR_CANNOT_MKDIR,
+	MU_FILE_ERROR_STAT_FAILED,
+	MU_FILE_ERROR_READDIR_FAILED,
 	/* generic file-related error */
 	MU_ERROR_FILE,