diff --git a/cocos2dx/platform/nacl/CCInstance.cpp b/cocos2dx/platform/nacl/CCInstance.cpp
index 44ef996c0f..3741b1d665 100644
--- a/cocos2dx/platform/nacl/CCInstance.cpp
+++ b/cocos2dx/platform/nacl/CCInstance.cpp
@@ -37,6 +37,7 @@ THE SOFTWARE.
 #include <pthread.h>
 #include <stdio.h>
 #include <sys/stat.h>
+#include <sys/mount.h>
 #include <unistd.h>
 
 USING_NS_CC;