1 files changed, 4 insertions, 0 deletions
diff --git a/src/or/rephist.c b/src/or/rephist.c
index 02dc864033..a74a952ce2 100644
--- a/src/or/rephist.c
+++ b/src/or/rephist.c
@@ -98,6 +98,10 @@
 #include "lib/math/fp.h"
 #include "lib/math/laplace.h"
 
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+
 static void bw_arrays_init(void);
 static void predicted_ports_alloc(void);