1 files changed, 2 insertions, 0 deletions
diff --git a/gdbstub.c b/gdbstub.c
index 462f89edfe..9159d7d153 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -16,9 +16,11 @@
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
+
 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "qemu/error-report.h"
+#include "qemu/ctype.h"
 #include "qemu/cutils.h"
 #include "trace-root.h"
 #ifdef CONFIG_USER_ONLY