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-rw-r--r--toynet.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/toynet.h b/toynet.h
index 2ecda641..4f87feb3 100644
--- a/toynet.h
+++ b/toynet.h
@@ -3,6 +3,7 @@
// going to build it.
#include <sys/socket.h>
+#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>