From a440ce2b6dac73d38a78329fa7c4a3484c6a09b7 Mon Sep 17 00:00:00 2001
From: Michael Orlitzky <michael@orlitzky.com>
Date: Fri, 10 Apr 2026 12:24:36 -0400
Subject: [PATCH] mjo/clan/normal_decomposition_element.py: ValueError ->
 IndexError

---
 mjo/clan/normal_decomposition_element.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mjo/clan/normal_decomposition_element.py b/mjo/clan/normal_decomposition_element.py
index b36ce86..fcb3521 100644
--- a/mjo/clan/normal_decomposition_element.py
+++ b/mjo/clan/normal_decomposition_element.py
@@ -203,7 +203,7 @@ class NormalDecompositionElement(ClanElement):
 
         """
         if i < 0:
-            raise ValueError("index 'i' must be zero or greater")
+            raise IndexError("index 'i' must be zero or greater")
 
         if i == 0:
             return self
-- 
2.53.0