diff --git a/src/testdir/test_listchars.vim b/src/testdir/test_listchars.vim
index ca47d52..172407a 100644
--- a/src/testdir/test_listchars.vim
+++ b/src/testdir/test_listchars.vim
@@ -336,6 +336,26 @@
   close
   call assert_equal(['+------+^^one>>two<<%'], ScreenLines(1, virtcol('$')))
 
+  " Setting invalid value for a local setting should not impact the local and
+  " global settings
+  split
+  setlocal listchars=tab:<->,lead:_,space:.,trail:@,eol:#
+  let cmd = 'setlocal listchars=tab:{.},lead:-,space:=,trail:#,eol:$,x'
+  call assert_fails(cmd, 'E474:')
+  call assert_equal(['<------>__one..two@@#'], ScreenLines(1, virtcol('$')))
+  close
+  call assert_equal(['+------+^^one>>two<<%'], ScreenLines(1, virtcol('$')))
+
+  " Setting invalid value for a global setting should not impact the local and
+  " global settings
+  split
+  setlocal listchars=tab:<->,lead:_,space:.,trail:@,eol:#
+  let cmd = 'setglobal listchars=tab:{.},lead:-,space:=,trail:#,eol:$,x'
+  call assert_fails(cmd, 'E474:')
+  call assert_equal(['<------>__one..two@@#'], ScreenLines(1, virtcol('$')))
+  close
+  call assert_equal(['+------+^^one>>two<<%'], ScreenLines(1, virtcol('$')))
+
   %bw!
   set list& listchars&
 endfunc
diff --git a/src/version.c b/src/version.c
index 02abac9..c1d89c0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2520,
+/**/
     2519,
 /**/
     2518,