1 files changed, 2 insertions, 0 deletions

diff --git a/dump.c b/dump.c
index 474af92..63ebba3 100644
--- a/dump.c
+++ b/dump.c
@@ -14,6 +14,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define _POSIX_C_SOURCE 2
+
 #include <err.h>
 #include <stdbool.h>
 #include <stdio.h>