diff --git a/ChangeLog b/ChangeLog
index 1b957aa6ae..7cd5cb0df8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2012-05-22  Paul Eggert  <eggert@cs.ucla.edu>
 
+	mktime: merge mktime-internal.h change from gnulib
+	* time/mktime.c [!_LIBC]: Include "mktime-internal.h".
+
 	mktime: merge time_r change from gnulib
 	* time/mktime.c [!_LIBC]: Do not include "time_r.h".
 
diff --git a/time/mktime.c b/time/mktime.c
index 15659d3d22..5a4f74203d 100644
--- a/time/mktime.c
+++ b/time/mktime.c
@@ -148,6 +148,7 @@ const unsigned short int __mon_yday[2][13] =
 # undef __localtime_r
 # define __localtime_r localtime_r
 # define __mktime_internal mktime_internal
+# include "mktime-internal.h"
 #endif
 
 /* Return an integer value measuring (YEAR1-YDAY1 HOUR1:MIN1:SEC1) -