diff --git a/.gitignore b/.gitignore
index 4d524a0..8ba5c0e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+.project
 *~
 aclocal.m4
 autom4te.cache/
diff --git a/src/zooadd.c b/src/zooadd.c
index c8fe9cc..2581c7d 100644
--- a/src/zooadd.c
+++ b/src/zooadd.c
@@ -8,8 +8,9 @@
 #include "options.h"
 
 #ifdef HAVE_NFTW
-#define _XOPEN_SOURCE 500	/* Rrequired on GLIBC */
-#define _GNU_SOURCE		/* -- " -- " -- " --  */
+#define _XOPEN_SOURCE 500	/* Required on GLIBC */
+#define _GNU_SOURCE		/* -- " -- " -- " -- */
+#define _POSIX_C_SOURCE 200809L	/* -- " -- " -- " -- */
 #include <ftw.h>
 #endif