1 files changed, 0 insertions, 2 deletions
diff --git a/src/ui.c b/src/ui.c
index 02563c4..824ed15 100644
--- a/src/ui.c
+++ b/src/ui.c
@@ -14,8 +14,6 @@
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
-#define _XOPEN_SOURCE 500
-
 #include <assert.h>
 #include <stdlib.h>
 #include <string.h>