diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 2491f3b406bc1725e99c7ea176e724e0619eb1e6..483727ad68923a3e27af6d693c9132db0148af7f 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -12,6 +12,7 @@
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
+#include <linux/elf.h>
 #include <linux/smp.h>
 #include <linux/ptrace.h>
 #include <linux/user.h>