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-rw-r--r--lib/extensions/fill_to_satin.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/extensions/fill_to_satin.py b/lib/extensions/fill_to_satin.py
index fcb967e5..d26fe5f2 100644
--- a/lib/extensions/fill_to_satin.py
+++ b/lib/extensions/fill_to_satin.py
@@ -171,7 +171,7 @@ class FillElementToSatin:
self._generate_line_sections()
self._define_relations(bridges)
- if len(self.line_sections) == 2 and self.line_sections[0].distance(self.line_sections[1]) > 0:
+ if len(self.line_sections) == 2 and self.line_sections[0].distance(self.line_sections[1]) > 0 and len(self.rungs):
# there is only one segment, add it directly
rails = [MultiLineString([self.line_sections[0], self.line_sections[1]])]
rungs = [ensure_multi_line_string(self.rungs[0])]