diff --git a/include/linux/fs.h b/include/linux/fs.h
index b3ec4a4..6253ddd 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -21,7 +21,7 @@
 
 /* Fixed constants first: */
 #undef NR_OPEN
-#define NR_OPEN (1024*1024)	/* Absolute upper limit on fd num */
+#define NR_OPEN (16*1024*1024)	/* Absolute upper limit on fd num */
 #define INR_OPEN 1024		/* Initial setting for nfile rlimits */
 
 #define BLOCK_SIZE_BITS 10