diff --git a/.golangci.yml b/.golangci.yml
index 4932f9b..6bb1353 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -10,6 +10,7 @@ linters:
     - nlreturn
     - gci
     - exhaustivestruct
+    - varnamelen
 linters-settings:
   maligned:
     # print struct with more effective memory layout or not, false by default
diff --git a/glob.go b/glob.go
index fee0751..e30a9ab 100644
--- a/glob.go
+++ b/glob.go
@@ -212,7 +212,7 @@ func compileOptions(optFuncs []OptFunc, pattern string) *globOptions {
 func filesInDirectory(options *globOptions, dir string) ([]string, error) {
 	var files []string
 
-	return files, fs.WalkDir(options.fs, dir, func(path string, info fs.DirEntry, err error) error {
+	err := fs.WalkDir(options.fs, dir, func(path string, info fs.DirEntry, err error) error {
 		if err != nil {
 			return err
 		}
@@ -223,6 +223,10 @@ func filesInDirectory(options *globOptions, dir string) ([]string, error) {
 		files = append(files, path)
 		return nil
 	})
+	if err != nil {
+		return files, fmt.Errorf("failed to get files in directory: %w", err)
+	}
+	return files, nil
 }
 
 func cleanFilepaths(paths []string, prefix string) []string {
diff --git a/glob_test.go b/glob_test.go
index 766b456..1f179f8 100644
--- a/glob_test.go
+++ b/glob_test.go
@@ -1,3 +1,4 @@
+// nolint: gocritic
 package fileglob
 
 import (
@@ -21,6 +22,7 @@ func TestGlob(t *testing.T) { // nolint:funlen
 	t.Run("real", func(t *testing.T) {
 		t.Parallel()
 		is := is.New(t)
+
 		var w bytes.Buffer
 		matches, err := Glob("*_test.go", WriteOptions(&w))
 		is.NoErr(err)
@@ -93,7 +95,7 @@ func TestGlob(t *testing.T) { // nolint:funlen
 
 		var w bytes.Buffer
 		matches, err := Glob(pattern, MaybeRootFS, QuoteMeta, WriteOptions(&w))
-		is.True(err != nil)                                            //exepected an error
+		is.True(err != nil)                                            // expected an error
 		is.True(strings.HasSuffix(err.Error(), "file does not exist")) // should have been file does not exist
 		is.Equal([]string{}, matches)
 		is.Equal(fmt.Sprintf("&{fs:%s matchDirectoriesDirectly:false prefix:%s pattern:%s}", prefix, prefix, glob.QuoteMeta(abs)), w.String())
diff --git a/prefix_test.go b/prefix_test.go
index 93c0674..7e43efe 100644
--- a/prefix_test.go
+++ b/prefix_test.go
@@ -1,3 +1,4 @@
+// nolint: gocritic
 package fileglob
 
 import (
@@ -25,7 +26,9 @@ func TestStaticPrefix(t *testing.T) {
 	}
 
 	for _, testCase := range testCases {
+		testCase := testCase
 		t.Run(testCase.pattern, func(t *testing.T) {
+			t.Parallel()
 			is := is.New(t)
 			prefix, err := staticPrefix(testCase.pattern)
 			is.NoErr(err)
@@ -52,7 +55,9 @@ func TestContainsMatchers(t *testing.T) {
 	}
 
 	for _, testCase := range testCases {
+		testCase := testCase
 		t.Run(testCase.pattern, func(t *testing.T) {
+			t.Parallel()
 			is := is.New(t)
 			_, err := ast.Parse(lexer.NewLexer(testCase.pattern))
 			is.NoErr(err)
@@ -73,7 +78,9 @@ func TestValidPattern(t *testing.T) {
 	}
 
 	for _, testCase := range testCases {
+		testCase := testCase
 		t.Run(testCase.pattern, func(t *testing.T) {
+			t.Parallel()
 			is.New(t).Equal(testCase.valid, ValidPattern(testCase.pattern) == nil)
 		})
 	}