diff --git a/openapi3/loader.go b/openapi3/loader.go
index 89b95eea4..f72a7b0ed 100644
--- a/openapi3/loader.go
+++ b/openapi3/loader.go
@@ -280,7 +280,7 @@ func join(basePath *url.URL, relativePath *url.URL) (*url.URL, error) {
 }
 
 func resolvePath(basePath *url.URL, componentPath *url.URL) (*url.URL, error) {
-	if componentPath.Scheme == "" && componentPath.Host == "" {
+	if is_file(componentPath) {
 		// support absolute paths
 		if componentPath.Path[0] == '/' {
 			return componentPath, nil
diff --git a/openapi3/loader_relative_refs_test.go b/openapi3/loader_relative_refs_test.go
index 7c553672d..2efb0c7e8 100644
--- a/openapi3/loader_relative_refs_test.go
+++ b/openapi3/loader_relative_refs_test.go
@@ -801,14 +801,14 @@ var relativeDocRefsTestDataEntries = []refTestDataEntry{
 
 func TestLoadSpecWithRelativeDocumentRefs(t *testing.T) {
 	for _, td := range relativeDocRefsTestDataEntries {
-		t.Logf("testcase %q", td.name)
-
-		spec := []byte(td.contentTemplate)
-		loader := NewLoader()
-		loader.IsExternalRefsAllowed = true
-		doc, err := loader.LoadFromDataWithPath(spec, &url.URL{Path: "testdata/"})
-		require.NoError(t, err)
-		td.testFunc(t, doc)
+		t.Run(td.name, func(t *testing.T) {
+			spec := []byte(td.contentTemplate)
+			loader := NewLoader()
+			loader.IsExternalRefsAllowed = true
+			doc, err := loader.LoadFromDataWithPath(spec, &url.URL{Path: "testdata/"})
+			require.NoError(t, err)
+			td.testFunc(t, doc)
+		})
 	}
 }
 
@@ -909,7 +909,6 @@ func TestLoadSpecWithRelativeDocumentRefs2(t *testing.T) {
 	loader := NewLoader()
 	loader.IsExternalRefsAllowed = true
 	doc, err := loader.LoadFromFile("testdata/relativeDocsUseDocumentPath/openapi/openapi.yml")
-
 	require.NoError(t, err)
 
 	// path in nested directory
diff --git a/openapi3/loader_uri_reader.go b/openapi3/loader_uri_reader.go
index ee6452f94..ba7b5f24a 100644
--- a/openapi3/loader_uri_reader.go
+++ b/openapi3/loader_uri_reader.go
@@ -68,12 +68,15 @@ func ReadFromHTTP(cl *http.Client) ReadFromURIFunc {
 	}
 }
 
+func is_file(location *url.URL) bool {
+	return location.Path != "" &&
+		location.Host == "" &&
+		(location.Scheme == "" || location.Scheme == "file")
+}
+
 // ReadFromFile is a ReadFromURIFunc which reads local file URIs.
 func ReadFromFile(loader *Loader, location *url.URL) ([]byte, error) {
-	if location.Host != "" {
-		return nil, ErrURINotSupported
-	}
-	if location.Scheme != "" && location.Scheme != "file" {
+	if !is_file(location) {
 		return nil, ErrURINotSupported
 	}
 	return os.ReadFile(location.Path)