1 files changed, 2 insertions, 0 deletions

diff --git a/html.c b/html.c
index cad966b..41ce387 100644
--- a/html.c
+++ b/html.c
@@ -1,3 +1,5 @@
+#define _POSIX_C_SOURCE 200809L
+
 #include "html.h"
 #include <dynstr.h>
 #include <errno.h>