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-rw-r--r--lib/stwcs/wcsutil/hstwcs.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/stwcs/wcsutil/hstwcs.py b/lib/stwcs/wcsutil/hstwcs.py
index cc9c28b..e7e5460 100644
--- a/lib/stwcs/wcsutil/hstwcs.py
+++ b/lib/stwcs/wcsutil/hstwcs.py
@@ -326,7 +326,7 @@ class HSTWCS(WCS):
if not wcskey:
wcskey = self.wcs.alt
if self.wcs.has_cd():
- h = altwcs.pc2cd(h, alt=self.wcs.alt, key=wcskey)
+ h = altwcs.pc2cd(h, key=wcskey)
if 'wcsname' not in h:
if self.idctab is not None: