diff --git a/src/nvim/normal.c b/src/nvim/normal.c
index 2a530db934..7b2f77a6f9 100644
--- a/src/nvim/normal.c
+++ b/src/nvim/normal.c
@@ -4931,7 +4931,8 @@ static void nv_ident(cmdarg_T *cap)
         snprintf(buf, buf_size, ".,.+%" PRId64, (int64_t)(cap->count0 - 1));
       }
 
-      STRCAT(buf, "! ");
+      do_cmdline_cmd("tabnew");
+      STRCAT(buf, "terminal ");
       if (cap->count0 == 0 && isman_s) {
         STRCAT(buf, "man");
       } else {
@@ -5028,6 +5029,17 @@ static void nv_ident(cmdarg_T *cap)
     g_tag_at_cursor = true;
     do_cmdline_cmd(buf);
     g_tag_at_cursor = false;
+
+    if (cmdchar == 'K' && !kp_ex && !kp_help) {
+      // Start insert mode in terminal buffer
+      restart_edit = 'i';
+
+      add_map((char_u *)"<buffer> <esc> <Cmd>call jobstop(&channel)<CR>", TERM_FOCUS, true);
+      do_cmdline_cmd("autocmd TermClose <buffer> "
+                     " if !v:event.status |"
+                     "   exec 'bdelete! ' .. expand('<abuf>') |"
+                     " endif");
+    }
   }
 
   xfree(buf);
diff --git a/src/nvim/testdir/test_normal.vim b/src/nvim/testdir/test_normal.vim
index 5c413d1e16..aff22f5d01 100644
--- a/src/nvim/testdir/test_normal.vim
+++ b/src/nvim/testdir/test_normal.vim
@@ -1227,7 +1227,7 @@ func Test_normal23_K()
   set iskeyword-=\|
 
   " Only expect "man" to work on Unix
-  if !has("unix")
+  if !has("unix") || has('nvim')  " Nvim K uses :terminal. #15398
     let &keywordprg = k
     bw!
     return
diff --git a/test/functional/normal/K_spec.lua b/test/functional/normal/K_spec.lua
index 174313d80e..40f36491e4 100644
--- a/test/functional/normal/K_spec.lua
+++ b/test/functional/normal/K_spec.lua
@@ -1,6 +1,6 @@
 local helpers = require('test.functional.helpers')(after_each)
-local eq, clear, eval, feed =
-  helpers.eq, helpers.clear, helpers.eval, helpers.feed
+local eq, clear, eval, feed, retry =
+  helpers.eq, helpers.clear, helpers.eval, helpers.feed, helpers.retry
 
 describe('K', function()
   local test_file = 'K_spec_out'
@@ -31,7 +31,7 @@ describe('K', function()
 
     -- K on the text "K_spec_out" resolves to `!echo fnord >> K_spec_out`.
     feed('i'..test_file..'<ESC>K')
-    feed('<CR>') -- Press ENTER
+    retry(nil, nil, function() eq(1, eval('filereadable("'..test_file..'")')) end)
     eq({'fnord'}, eval("readfile('"..test_file.."')"))
   end)