2 files changed, 33 insertions, 6 deletions
diff --git a/runtime/lua/vim/lsp/completion.lua b/runtime/lua/vim/lsp/completion.lua
index 2e6d82b367..b935c48d3c 100644
--- a/runtime/lua/vim/lsp/completion.lua
+++ b/runtime/lua/vim/lsp/completion.lua
@@ -235,14 +235,20 @@ function M._lsp_to_complete_items(result, prefix, client_id)
     return {}
   end
 
-  local matches = prefix == '' and function()
-    return true
-  end or function(item)
-    if item.filterText then
-      return next(vim.fn.matchfuzzy({ item.filterText }, prefix))
+  ---@type fun(item: lsp.CompletionItem):boolean
+  local matches
+  if prefix == '' then
+    matches = function(_)
+      return true
+    end
+  else
+    ---@param item lsp.CompletionItem
+    matches = function(item)
+      local text = item.filterText or item.label
+      return next(vim.fn.matchfuzzy({ text }, prefix)) ~= nil
     end
-    return true
   end
+
   local candidates = {}
   for _, item in ipairs(items) do
     if matches(item) then
diff --git a/test/functional/plugin/lsp/completion_spec.lua b/test/functional/plugin/lsp/completion_spec.lua
index 1b56d1740a..bc10c0c937 100644
--- a/test/functional/plugin/lsp/completion_spec.lua
+++ b/test/functional/plugin/lsp/completion_spec.lua
@@ -141,6 +141,27 @@ describe('vim.lsp.completion: item conversion', function()
     eq(expected, result)
   end)
 
+  it('filters on label if filterText is missing', function()
+    local completion_list = {
+      { label = 'foo' },
+      { label = 'bar' },
+    }
+    local result = complete('fo|', completion_list)
+    local expected = {
+      {
+        abbr = 'foo',
+        word = 'foo',
+      },
+    }
+    result = vim.tbl_map(function(x)
+      return {
+        abbr = x.abbr,
+        word = x.word,
+      }
+    end, result.items)
+    eq(expected, result)
+  end)
+
   it('trims trailing newline or tab from textEdit', function()
     local range0 = {
       start = { line = 0, character = 0 },