diff --git a/src/session.c b/src/session.c
index 5bebb05..3f5d4c6 100644
--- a/src/session.c
+++ b/src/session.c
@@ -898,7 +898,7 @@
 
     // Lastly, execute the x.vim file if it exists.
     if (put_line(fd, "let s:sx = expand(\"<sfile>:p:r\").\"x.vim\"") == FAIL
-	    || put_line(fd, "if file_readable(s:sx)") == FAIL
+	    || put_line(fd, "if filereadable(s:sx)") == FAIL
 	    || put_line(fd, "  exe \"source \" . fnameescape(s:sx)") == FAIL
 	    || put_line(fd, "endif") == FAIL)
 	return FAIL;
diff --git a/src/version.c b/src/version.c
index c0c2e98..c8a1d55 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    584,
+/**/
     583,
 /**/
     582,