diff --git a/lib/rand.c b/lib/rand.c
index a51951cea..4da37b9dc 100644
--- a/lib/rand.c
+++ b/lib/rand.c
@@ -22,7 +22,9 @@
 
 #include "curl_setup.h"
 
+#ifdef HAVE_FCNTL_H
 #include <fcntl.h>
+#endif
 
 #include <curl/curl.h>
 #include "vtls/vtls.h"