diff --git a/generate/parse.go b/generate/parse.go
index cb4a7a5..e6e1ca3 100644
--- a/generate/parse.go
+++ b/generate/parse.go
@@ -25,8 +25,8 @@ func defaultProtocol() Protocol {
 	}
 }
 
-func ParseReader(reader io.Reader) (*Protocol, error) {
-	lx, err := Lex("test.pdl", reader)
+func ParseReader(fileName string, reader io.Reader) (*Protocol, error) {
+	lx, err := Lex(fileName, reader)
 	if err != nil { return nil, err }
 	return Parse(lx)
 }
diff --git a/generate/parse_test.go b/generate/parse_test.go
index 1916580..a447ebb 100644
--- a/generate/parse_test.go
+++ b/generate/parse_test.go
@@ -33,7 +33,7 @@ func TestParse(test *testing.T) {
 	}
 	test.Log("CORRECT:", &correct)
 	
-	got, err := ParseReader(strings.NewReader(`
+	got, err := ParseReader("test.pdl", strings.NewReader(`
 	M0000 Connect {
 		0000 Name String,
 		0001 Password String,