diff --git a/basic/star.go b/basic/star.go
index 2bc18d3..d553cab 100644
--- a/basic/star.go
+++ b/basic/star.go
@@ -229,9 +229,8 @@ func IsXZ(ra, dec, jde float64) string {
 		return "UMI"
 	} else if ndec < -50 {
 		return "OCT"
-	} else {
-		return ""
 	}
+	return ""
 }
 
 func WhichCst(ra, dec, jde float64) string {