diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c
index b1e6c4b2e8eb228834edcbad9d9ff8ffbb9d99f9..54fcffed28ed11bf7740598b0483c91807c743db 100644
--- a/arch/x86/lib/insn.c
+++ b/arch/x86/lib/insn.c
@@ -18,7 +18,11 @@
  * Copyright (C) IBM Corporation, 2002, 2004, 2009
  */
 
+#ifdef __KERNEL__
 #include <linux/string.h>
+#else
+#include <string.h>
+#endif
 #include <asm/inat.h>
 #include <asm/insn.h>