diff --git a/d2common/d2fileformats/d2pl2/pl2.go b/d2common/d2fileformats/d2pl2/pl2.go
index 1dd93832..79db5c21 100644
--- a/d2common/d2fileformats/d2pl2/pl2.go
+++ b/d2common/d2fileformats/d2pl2/pl2.go
@@ -42,8 +42,10 @@ func Load(data []byte) (*PL2, error) {
 	return result, nil
 }
 
+// Marshal encodes PL2 back into byte slice
 func (p *PL2) Marshal() []byte {
 	restruct.EnableExprBeta()
+
 	data, err := restruct.Pack(binary.LittleEndian, p)
 	if err != nil {
 		panic(err)
diff --git a/d2common/d2fileformats/d2pl2/pl2_test.go b/d2common/d2fileformats/d2pl2/pl2_test.go
index f1e5a2f5..87be05ac 100644
--- a/d2common/d2fileformats/d2pl2/pl2_test.go
+++ b/d2common/d2fileformats/d2pl2/pl2_test.go
@@ -35,5 +35,6 @@ func TestPL2_MarshalUnmarshal(t *testing.T) {
 	}
 
 	if pl2.DarkendColorShift.Indices[0] != newPL2.DarkendColorShift.Indices[0] {
+		t.Fatal("unexpected index set")
 	}
 }