diff --git a/lib/Slic3r.pm b/lib/Slic3r.pm
index 7a4f46c93..9013ad8d5 100644
--- a/lib/Slic3r.pm
+++ b/lib/Slic3r.pm
@@ -40,7 +40,6 @@ use Slic3r::Config;
 use Slic3r::ExPolygon;
 use Slic3r::ExtrusionLoop;
 use Slic3r::ExtrusionPath;
-use Slic3r::ExtrusionPath::Collection;
 use Slic3r::Fill;
 use Slic3r::Flow;
 use Slic3r::Format::AMF;