From 2713ff1a6c64147a07a2004abd3671eaf96edb2f Mon Sep 17 00:00:00 2001
From: Frederic Van Assche <frederic@fredericva.com>
Date: Mon, 5 Oct 2026 17:20:50 +0200
Subject: [PATCH] Fix loading of per-cluster size constants from v2 spexical
 files

---
 src/spexipy/spexical.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/spexipy/spexical.py b/src/spexipy/spexical.py
index 4afae17..80cd0f3 100644
--- a/src/spexipy/spexical.py
+++ b/src/spexipy/spexical.py
@@ -53,7 +53,7 @@ class SpeXICAL:
         else:
             cluster_cal_struct = struct.Struct('<f')
             for i in range(self._cluster_cal_count):
-                offset = cluster_cal_struct.unpack_from(self._file.read(cluster_cal_struct.size))
+                offset, = cluster_cal_struct.unpack_from(self._file.read(cluster_cal_struct.size))
                 self.cluster_calibrations.append(offset)
 
         self.dark_offset = self._load_frame(np.float32)