diff --git a/include/linux/ipc.h b/include/linux/ipc.h
index d9e2b3f..636094c 100644
--- a/include/linux/ipc.h
+++ b/include/linux/ipc.h
@@ -2,7 +2,6 @@
 #define _LINUX_IPC_H
 
 #include <linux/types.h>
-#include <linux/kref.h>
 
 #define IPC_PRIVATE ((__kernel_key_t) 0)  
 
@@ -52,6 +51,8 @@
 
 #ifdef __KERNEL__
 
+#include <linux/kref.h>
+
 #define IPCMNI 32768  /* <= MAX_INT limit for ipc arrays (including sysctl changes) */
 
 /* used by in-kernel data structures */