diff --git a/src/battery/freebsd.c b/src/battery/freebsd.c
index bf76b6d..ab13082 100644
--- a/src/battery/freebsd.c
+++ b/src/battery/freebsd.c
@@ -15,7 +15,7 @@
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 **************************************************************************/
 
-#if defined(__FreeBSD__)
+#if defined(__FreeBSD__) || defined(__DragonFly__)
 
 #include <sys/types.h>
 #include <sys/sysctl.h>