diff --git a/src/zeroconf.c b/src/zeroconf.c
index 0de0957..21c4929 100644
--- a/src/zeroconf.c
+++ b/src/zeroconf.c
@@ -33,6 +33,7 @@
 #include <unistd.h>
 #include <stdlib.h>
 #include <limits.h>
+#include <fcntl.h>
 
 #include <avahi-common/domain.h>
 #include <avahi-common/error.h>