diff --git a/aeron-client/src/main/c/util/aeron_bitutil.c b/aeron-client/src/main/c/util/aeron_bitutil.c
index 685c403ebc..1f0347e751 100644
--- a/aeron-client/src/main/c/util/aeron_bitutil.c
+++ b/aeron-client/src/main/c/util/aeron_bitutil.c
@@ -22,9 +22,13 @@
 #endif
 #endif
 
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <limits.h>
+#include <unistd.h>
 
 #include "util/aeron_bitutil.h"
 #include "util/aeron_platform.h"