diff --git a/wcs/wf/export_to_model.py b/wcs/wf/export_to_model.py
index 0bba5cf4e..7e7cf6d29 100644
--- a/wcs/wf/export_to_model.py
+++ b/wcs/wf/export_to_model.py
@@ -80,7 +80,8 @@ try:
                 infile.flush()
                 for i in range(3):
                     lo_output = subprocess.run(
-                            ['libreoffice', '--headless', '--convert-to', 'pdf',
+                            ['libreoffice', '-env:UserInstallation=file://%s' % temp_dir,
+                                '--headless', '--convert-to', 'pdf',
                                 infile.name, '--outdir', temp_dir],
                             check=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
                     if os.path.exists(infile.name + '.pdf'):