diff --git a/tmate-session.c b/tmate-session.c
index b43a261b..8d647203 100644
--- a/tmate-session.c
+++ b/tmate-session.c
@@ -2,6 +2,7 @@
 #include <event2/util.h>
 #include <event2/event.h>
 
+#include <netinet/in.h>
 #include <sys/socket.h>
 
 #include <stdio.h>
diff --git a/tmate-ssh-client.c b/tmate-ssh-client.c
index 8b78f5cc..f13db90a 100644
--- a/tmate-ssh-client.c
+++ b/tmate-ssh-client.c
@@ -1,4 +1,5 @@
 #include <sys/socket.h>
+#include <netinet/in.h>
 #include <netinet/tcp.h>
 #include <stdio.h>
 #include <event.h>