diff --git a/op-pwrctl/pgood_wait/pgood_wait.c b/op-pwrctl/pgood_wait/pgood_wait.c
index e7ddb8c..069ee35 100644
--- a/op-pwrctl/pgood_wait/pgood_wait.c
+++ b/op-pwrctl/pgood_wait/pgood_wait.c
@@ -13,8 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#include <stdlib.h>
+#include <stdbool.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <errno.h>
 #include <systemd/sd-bus.h>
 #include <systemd/sd-event.h>