diff --git a/python-nibabel.spec b/python-nibabel.spec
index e06d600..e99f03e 100644
--- a/python-nibabel.spec
+++ b/python-nibabel.spec
@@ -47,7 +47,8 @@ Provides:       bundled(python%{python3_version}dist(netcdf))
 %description -n python3-nibabel %_description
 
 %prep
-%autosetup -n nibabel-%{version} -S git
+# warning: don't use -S git/git_am here, or hatchling/hatch-vcs generates a wrong version
+%autosetup -n nibabel-%{version} -p1
 
 # delete shebangs from files that don't need it
 find nibabel/cmdline/  -name "*.py" -execdir sed -i '/^#!python/ d' '{}' \;