diff --git a/include/asm-i386/ptrace.h b/include/asm-i386/ptrace.h
index b926cb4f4cfd..05532875e39e 100644
--- a/include/asm-i386/ptrace.h
+++ b/include/asm-i386/ptrace.h
@@ -55,6 +55,9 @@ struct pt_regs {
 #define PTRACE_SET_THREAD_AREA    26
 
 #ifdef __KERNEL__
+
+#include <asm/vm86.h>
+
 struct task_struct;
 extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code);