diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index b6e3e87d25fb..13c6ec812545 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -1,5 +1,6 @@
 #include <linux/init.h>
 #include <linux/bitops.h>
+#include <linux/elf.h>
 #include <linux/mm.h>
 
 #include <linux/io.h>