diff --git a/src/fileio.c b/src/fileio.c
index b3fc287..9224777 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -27,7 +27,7 @@
 /* Is there any system that doesn't have access()? */
 #define USE_MCH_ACCESS
 
-#if defined(sun) && defined(S_ISCHR)
+#if (defined(sun) || defined(__FreeBSD__)) && defined(S_ISCHR)
 # define OPEN_CHR_FILES
 static int is_dev_fd_file(char_u *fname);
 #endif