diff --git a/indexlib/mmap_manager.cpp b/indexlib/mmap_manager.cpp
index 3a4f14fc..30e045cf 100644
--- a/indexlib/mmap_manager.cpp
+++ b/indexlib/mmap_manager.cpp
@@ -39,6 +39,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <cstring>
+#include <stdio.h>
 #include "format.h"
 
 using indexlib::detail::errno_error;