diff --git a/include/linux/compat.h b/include/linux/compat.h
index c9ab2a2..859f957 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -45,6 +45,32 @@
 	compat_clock_t		tms_cstime;
 };
 
+struct compat_timex {
+	compat_uint_t modes;
+	compat_long_t offset;
+	compat_long_t freq;
+	compat_long_t maxerror;
+	compat_long_t esterror;
+	compat_int_t status;
+	compat_long_t constant;
+	compat_long_t precision;
+	compat_long_t tolerance;
+	struct compat_timeval time;
+	compat_long_t tick;
+	compat_long_t ppsfreq;
+	compat_long_t jitter;
+	compat_int_t shift;
+	compat_long_t stabil;
+	compat_long_t jitcnt;
+	compat_long_t calcnt;
+	compat_long_t errcnt;
+	compat_long_t stbcnt;
+
+	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
+	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
+	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
+};
+
 #define _COMPAT_NSIG_WORDS	(_COMPAT_NSIG / _COMPAT_NSIG_BPW)
 
 typedef struct {