diff --git a/ChangeLog b/ChangeLog
index 6313758417..26f7f3f3b1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2015-01-29  Andreas Schwab  <schwab@suse.de>
+
+	* sysdeps/nptl/allocrtsig.c: Include <signal.h>.
+
 2015-01-29  Siddhesh Poyarekar <siddhesh@redhat.com>
 
 	[BZ #17892]
diff --git a/sysdeps/nptl/allocrtsig.c b/sysdeps/nptl/allocrtsig.c
index 6b1c5b2e33..7e3c62140b 100644
--- a/sysdeps/nptl/allocrtsig.c
+++ b/sysdeps/nptl/allocrtsig.c
@@ -16,6 +16,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#include <signal.h>
 #include <nptl/pthreadP.h>
 
 /* Up to three special signals might be used privately by libpthread.