diff --git a/src/regexp.c b/src/regexp.c
index c9e781b..9505765 100644
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -1267,8 +1267,8 @@
     colnr_T	cols;
     colnr_T	curswant;
 
-    // Check if the buffer is the current buffer.
-    if (rex.reg_buf != curbuf || VIsual.lnum == 0)
+    // Check if the buffer is the current buffer and not using a string.
+    if (rex.reg_buf != curbuf || VIsual.lnum == 0 || rex.reg_maxline == 0)
 	return FALSE;
 
     if (VIsual_active)
diff --git a/src/testdir/test_help.vim b/src/testdir/test_help.vim
index 3e358d6..b8b9bbc 100644
--- a/src/testdir/test_help.vim
+++ b/src/testdir/test_help.vim
@@ -1,6 +1,7 @@
 " Tests for :help
 
 source check.vim
+import './vim9.vim' as v9
 
 func Test_help_restore_snapshot()
   help
@@ -168,5 +169,15 @@
   endtry
 endfunc
 
+func Test_help_using_visual_match()
+  let lines =<< trim END
+      call setline(1, ' ')
+      /^
+      exe "normal \<C-V>\<C-V>"
+      h5\%V]
+  END
+  call v9.CheckScriptFailure(lines, 'E149:')
+endfunc
+
 
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/version.c b/src/version.c
index f696b30..4946c3e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4261,
+/**/
     4260,
 /**/
     4259,