diff --git a/src/mbyte.c b/src/mbyte.c
index 1b33091..323f1a0 100644
--- a/src/mbyte.c
+++ b/src/mbyte.c
@@ -731,8 +731,13 @@
 
     /* When using Unicode, set default for 'fileencodings'. */
     if (enc_utf8 && !option_was_set((char_u *)"fencs"))
+    {
 	set_string_option_direct((char_u *)"fencs", -1,
 			  (char_u *)"ucs-bom,utf-8,default,latin1", OPT_FREE);
+# ifdef FEAT_EVAL
+	set_option_scriptID((char_u *)"fencs", current_SID);
+# endif
+    }
 #if defined(HAVE_BIND_TEXTDOMAIN_CODESET) && defined(FEAT_GETTEXT)
     /* GNU gettext 0.10.37 supports this feature: set the codeset used for
      * translated messages independently from the current locale. */