diff --git a/apgbpal.go b/apgbpal.go
index 4f1ca4e..7b9126f 100644
--- a/apgbpal.go
+++ b/apgbpal.go
@@ -30,7 +30,7 @@ func HexByteAt(str string, index int) (byte, error) {
 	return byte(big), nil
 }
 
-func ParseRGBA(str string) RGBA, error {
+func ParseRGBA(str string) (RGBA, error) {
 	s := strings.TrimSpace(str)
 	s = strings.ToLower(s)
 	s, _ = strings.CutPrefix(s, "#")
@@ -83,7 +83,8 @@ func MustParseBGPal(strs []string) BGPal {
 	}
 	var ret BGPal
 	for i := 0; i < 4; i++ {
-		ret[i], err := ParseRGBA(strs[i])
+		var err error
+		ret[i], err = ParseRGBA(strs[i])
 		if err != nil {
 			log.Fatalf("MustParseBGPal can't parse at %d: %v", i, err)
 		}
@@ -120,7 +121,8 @@ func MustParseOBJPal(strs []string) OBJPal {
 	}
 	var ret OBJPal
 	for i := 0; i < 3; i++ {
-		ret[i], err := ParseRGBA(strs[i])
+		var err error
+		ret[i], err = ParseRGBA(strs[i])
 		if err != nil {
 			log.Fatalf("MustParseOBJPal can't parse at %d: %v", i, err)
 		}
@@ -149,16 +151,20 @@ func (a APGBPal) Bytes() [56]byte {
 }
 
 func main() {
-	f, err := os.OpenFile("test.pal", O_WRONLY|O_CREATE|O_EXCL, 0644)
+	f, err := os.OpenFile(
+		"test.pal",
+		os.O_WRONLY|os.O_CREATE|os.O_EXCL,
+		0644)
 	if err != nil {
 		log.Fatalf("can't create test.pal: %v", err)
 	}
 	aUpPal := APGBPal{
 		BG:   MustParseBGPal([]string{"ffffff", "ff8484", "943a3a", "000000"}),
-		OBJ0: MustParseObjPal([]string{"7bff31", "008400", "000000"}),
-		OBJ1: MustParseObjPal([]string{"63a5ff", "0000ff", "000000"}),
+		OBJ0: MustParseOBJPal([]string{"7bff31", "008400", "000000"}),
+		OBJ1: MustParseOBJPal([]string{"63a5ff", "0000ff", "000000"}),
 	}
-	n, err := f.Write(aUpPal.Bytes()[:])
+	palb := aUpPal.Bytes()
+	n, err := f.Write(palb[:])
 	if err != nil {
 		log.Fatalf("can't save test.pal: %v", err)
 	}