diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0b0eedea1..07912d328 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,10 @@ Given a version number `MAJOR.MINOR.PATCH`, we increment the:
 - Add `terramate.config.generate.hcl_magic_header_comment_style` option for setting the generated comment style.
 - Add support for formatting specific files and stdin (`terramate fmt [file...]` or `terramate fmt -`).
 
+### Fixed
+
+- Fix language server panic when root directory contain errors.
+
 ## 0.4.5
 
 ### Added
diff --git a/ls/ls.go b/ls/ls.go
index 577eda86f..30a8e35f3 100644
--- a/ls/ls.go
+++ b/ls/ls.go
@@ -362,12 +362,16 @@ func listFiles(fromFile string) ([]string, error) {
 // is handled separately because it can be unsaved.
 func (s *Server) checkFiles(files []string, currentFile string, currentContent string) error {
 	dir := filepath.Dir(currentFile)
-	root, rootdir, found, _ := config.TryLoadConfig(dir)
+	var experiments []string
+	root, rootdir, found, err := config.TryLoadConfig(dir)
+	if err == nil {
+		experiments = root.Tree().Node.Experiments()
+	}
 	if !found {
 		rootdir = s.workspace
 	}
 
-	parser, err := hcl.NewTerramateParser(rootdir, dir, root.Tree().Node.Experiments()...)
+	parser, err := hcl.NewTerramateParser(rootdir, dir, experiments...)
 	if err != nil {
 		return errors.E(err, "failed to create terramate parser")
 	}
diff --git a/ls/ls_test.go b/ls/ls_test.go
index d22f163c1..0de436a61 100644
--- a/ls/ls_test.go
+++ b/ls/ls_test.go
@@ -43,6 +43,35 @@ func TestDocumentOpen(t *testing.T) {
 		params.URI.Filename())
 }
 
+func TestDocumentRegressionErrorLoadingRootConfig(t *testing.T) {
+	t.Parallel()
+	f := lstest.Setup(t)
+
+	file := f.Sandbox.RootEntry().CreateFile("test.tm", "attr = 1")
+	f.Editor.CheckInitialize(f.Sandbox.RootDir())
+	f.Editor.Open("test.tm")
+
+	// root.config.tm diagnostic
+	r := <-f.Editor.Requests
+	assert.EqualStrings(t, "textDocument/publishDiagnostics", r.Method(),
+		"unexpected notification request")
+
+	var params lsp.PublishDiagnosticsParams
+	assert.NoError(t, json.Unmarshal(r.Params(), &params), "unmarshaling params")
+	assert.EqualInts(t, 0, len(params.Diagnostics))
+	assert.EqualStrings(t, filepath.Join(f.Sandbox.RootDir(), "root.config.tm"), params.URI.Filename())
+
+	// test.tm diagnostic
+	r = <-f.Editor.Requests
+	assert.EqualStrings(t, "textDocument/publishDiagnostics", r.Method(),
+		"unexpected notification request")
+
+	params = lsp.PublishDiagnosticsParams{}
+	assert.NoError(t, json.Unmarshal(r.Params(), &params), "unmarshaling params")
+	assert.EqualInts(t, 1, len(params.Diagnostics))
+	assert.EqualStrings(t, file.Path(), params.URI.Filename())
+}
+
 func TestDocumentChange(t *testing.T) {
 	t.Skip("not ready")