diff --git a/gdb/gmp-utils.c b/gdb/gmp-utils.c
index b9c9b495398d3c26555d19332ee3f11ec578c137..8150fa5dcdf7ac76810afac5189f671a49883762 100644
--- a/gdb/gmp-utils.c
+++ b/gdb/gmp-utils.c
@@ -15,6 +15,7 @@
    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 "defs.h"
 #include "gmp-utils.h"
 
 /* See gmp-utils.h.  */
diff --git a/gdb/gmp-utils.h b/gdb/gmp-utils.h
index 9aa501ac8c6c9fb9e0c96e87caa1fe2c6d76d5c6..3f30b575f72d56baf31aa929a1443c0659282174 100644
--- a/gdb/gmp-utils.h
+++ b/gdb/gmp-utils.h
@@ -20,8 +20,6 @@
 #ifndef GMP_UTILS_H
 #define GMP_UTILS_H
 
-#include "defs.h"
-
 /* Include <stdio.h> and <stdarg.h> ahead of <gmp.h>, so as to get
    access to GMP's various formatting functions.  */
 #include <stdio.h>
diff --git a/gdb/unittests/gmp-utils-selftests.c b/gdb/unittests/gmp-utils-selftests.c
index cc525a13fc0a93cf34b5bcb1ed9c728a3d22f362..e2ccd2ca094b3cdd4af3eaa16bbb754b861b193b 100644
--- a/gdb/unittests/gmp-utils-selftests.c
+++ b/gdb/unittests/gmp-utils-selftests.c
@@ -17,6 +17,7 @@
    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 "defs.h"
 #include "gmp-utils.h"
 #include "gdbsupport/selftest.h"