diff --git a/include/linux/timex.h b/include/linux/timex.h
index 94f8faecdcbc..7a082b32d8e1 100644
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -238,9 +238,6 @@ extern int tickadj;			/* amount of adjustment per tick */
  * phase-lock loop variables
  */
 extern int time_status;		/* clock synchronization status bits */
-extern long time_maxerror;	/* maximum error */
-extern long time_esterror;	/* estimated error */
-
 extern long time_adjust;	/* The amount of adjtime left */
 
 extern void ntp_init(void);
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 4800f933910e..74b1b37b1595 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -58,10 +58,10 @@ static s64			time_offset;
 static long			time_constant = 2;
 
 /* maximum error (usecs):						*/
-long				time_maxerror = NTP_PHASE_LIMIT;
+static long			time_maxerror = NTP_PHASE_LIMIT;
 
 /* estimated error (usecs):						*/
-long				time_esterror = NTP_PHASE_LIMIT;
+static long			time_esterror = NTP_PHASE_LIMIT;
 
 /* frequency offset (scaled nsecs/secs):				*/
 static s64			time_freq;