diff --git a/src/evalfunc.c b/src/evalfunc.c
index 23d5dd3..2bb9cce 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -5546,7 +5546,6 @@
 	// buffer not loaded
 	if (findbuf == NULL || findbuf->b_ml.ml_mfp == NULL)
 	    return;
-	save_curbuf = curbuf;
 	curbuf = findbuf;
     }
 
diff --git a/src/testdir/test_undo.vim b/src/testdir/test_undo.vim
index 13c4990..eec0e0b 100644
--- a/src/testdir/test_undo.vim
+++ b/src/testdir/test_undo.vim
@@ -583,7 +583,7 @@
   endif
   call assert_equal('', undofile(''))
 
-  " Test undofile() with 'undodir' set to to an existing directory.
+  " Test undofile() with 'undodir' set to an existing directory.
   call mkdir('Xundodir')
   set undodir=Xundodir
   let cwd = getcwd()
diff --git a/src/version.c b/src/version.c
index 03ad6fe..86537c4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    157,
+/**/
     156,
 /**/
     155,