diff --git a/include/shared.h b/include/shared.h
index abf7a9bc8..b7c78129e 100644
--- a/include/shared.h
+++ b/include/shared.h
@@ -10,6 +10,7 @@
 #include <string.h>
 #include <unistd.h>
 #include <time.h>
+#include <fcntl.h>
 
 bool is_power_of_2 (const u32 v);