diff --git a/draft.go b/draft.go
index 9119a7c..61298e7 100644
--- a/draft.go
+++ b/draft.go
@@ -94,12 +94,7 @@ func parseSchemaURL(documentNode interface{}) (string, *Draft, error) {
 	}
 
 	if !isKind(documentNode, reflect.Map) {
-		return "", nil, errors.New(formatErrorDescription(
-			Locale.ParseError(),
-			ErrorDetails{
-				"expected": STRING_SCHEMA,
-			},
-		))
+		return "", nil, errors.New("schema is invalid")
 	}
 
 	m := documentNode.(map[string]interface{})
diff --git a/schemaLoader_test.go b/schemaLoader_test.go
index 46a618c..96adfca 100644
--- a/schemaLoader_test.go
+++ b/schemaLoader_test.go
@@ -172,5 +172,5 @@ func TestParseSchemaURL_NotMap(t *testing.T) {
 	_, err := NewSchema(sl)
 	//THEN
 	require.Error(t, err)
-	assert.EqualError(t, err, "Expected: valid schema, given: Invalid JSON")
+	assert.EqualError(t, err, "schema is invalid")
 }