diff --git a/aucat/aucat.c b/aucat/aucat.c
index 0df6f39..e197c0d 100644
--- a/aucat/aucat.c
+++ b/aucat/aucat.c
@@ -23,6 +23,7 @@
 #include <err.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <grp.h>
 #include <limits.h>
 #include <pwd.h>
 #include <signal.h>
diff --git a/aucat/dev.c b/aucat/dev.c
index 342e9d0..aad6d9d 100644
--- a/aucat/dev.c
+++ b/aucat/dev.c
@@ -79,6 +79,7 @@
 #ifdef DEBUG
 #include "dbg.h"
 #endif
+#include "bsd-compat.h"
 
 int  dev_open(struct dev *);
 void dev_close(struct dev *);
diff --git a/aucat/sock.c b/aucat/sock.c
index 179ebdb..587c165 100644
--- a/aucat/sock.c
+++ b/aucat/sock.c
@@ -17,6 +17,7 @@
 
 #include <sys/types.h>
 #include <sys/socket.h>
+#include <arpa/inet.h>
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>