diff --git a/headers/os/kernel/fs_interface.h b/headers/os/kernel/fs_interface.h
index 3b0ea7039f..1c1d4d27ee 100644
--- a/headers/os/kernel/fs_interface.h
+++ b/headers/os/kernel/fs_interface.h
@@ -123,7 +123,7 @@ typedef struct fs_ops {
 	status_t (*read_index_dir)(fs_volume fs, fs_cookie cookie, struct dirent *buffer, size_t bufferSize, uint32 *_num);
 	status_t (*rewind_index_dir)(fs_volume fs, fs_cookie cookie);
 
-	status_t (*create_index)(fs_volume fs, const char *name, uint32 type, int flags);
+	status_t (*create_index)(fs_volume fs, const char *name, uint32 type, uint32 flags);
 	status_t (*remove_index)(fs_volume fs, const char *name);
 	status_t (*read_index_stat)(fs_volume fs, const char *name, struct stat *stat);