diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index f608d9e4ee..beee613534 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2021-02-19  Kevin Buettner  <kevinb@redhat.com>
+
+	* nat/amd64-linux-siginfo.c: Include "gdbsupport/common-defs.h"
+	(which in turn includes <gnulib/config.h>) before include
+	of <signal.h>.
+
 2021-02-19  Nelson Chu  <nelson.chu@sifive.com>
 
 	PR 27158
diff --git a/gdb/nat/amd64-linux-siginfo.c b/gdb/nat/amd64-linux-siginfo.c
index 0c932814ec..e2d2db6e11 100644
--- a/gdb/nat/amd64-linux-siginfo.c
+++ b/gdb/nat/amd64-linux-siginfo.c
@@ -17,8 +17,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-#include <signal.h>
 #include "gdbsupport/common-defs.h"
+#include <signal.h>
 #include "amd64-linux-siginfo.h"
 
 #define GDB_SI_SIZE 128