diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 08786335f5f..5b757d9a93d 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2020-03-14  Kamil Rytarowski  <n54@gmx.com>
+
+	* ppc-nbsd-nat.c: Define _KERNTYPES to get the declaration of
+	register_t.
+
 2020-03-14  Kamil Rytarowski  <n54@gmx.com>
 
 	* vax-bsd-nat.c: Define _KERNTYPES to get the declaration of
diff --git a/gdb/ppc-nbsd-nat.c b/gdb/ppc-nbsd-nat.c
index a2a0c0b958e..86a20a97329 100644
--- a/gdb/ppc-nbsd-nat.c
+++ b/gdb/ppc-nbsd-nat.c
@@ -19,6 +19,8 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+/* We define this to get types like register_t.  */
+#define _KERNTYPES
 #include "defs.h"
 
 #include <sys/types.h>