diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 4c084677d2e..e37a0000fb8 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,7 @@
+2016-11-07  Tamar Christina  <tamar.christina@arm.com>
+
+	* adaint.c: Added signal.h for Windows.
+
 2016-10-31  Jakub Jelinek  <jakub@redhat.com>
 
 	* gcc-interface/misc.c (gnat_get_array_descr_info): Clear rank field.
diff --git a/gcc/ada/adaint.c b/gcc/ada/adaint.c
index 353914708ad..819ea47e449 100644
--- a/gcc/ada/adaint.c
+++ b/gcc/ada/adaint.c
@@ -190,6 +190,7 @@ UINT CurrentCCSEncoding;
 #include <accctrl.h>
 #include <aclapi.h>
 #include <tlhelp32.h>
+#include <signal.h>
 #undef DIR_SEPARATOR
 #define DIR_SEPARATOR '\\'