diff --git a/lib/Slic3r/Geometry/Clipper.pm b/lib/Slic3r/Geometry/Clipper.pm
index d454b3b1c..5bd2a74e4 100644
--- a/lib/Slic3r/Geometry/Clipper.pm
+++ b/lib/Slic3r/Geometry/Clipper.pm
@@ -6,7 +6,7 @@ require Exporter;
 our @ISA = qw(Exporter);
 our @EXPORT_OK = qw(safety_offset safety_offset_ex offset offset_ex collapse_ex
     diff_ex diff union_ex intersection_ex xor_ex PFT_EVENODD JT_MITER JT_ROUND
-    JT_SQUARE is_counter_clockwise union_pt ex_int_offset2 offset2);
+    JT_SQUARE is_counter_clockwise union_pt offset2 offset2_ex);
 
 use Math::Clipper 1.17 qw(:cliptypes :polyfilltypes :jointypes is_counter_clockwise area);
 use Slic3r::Geometry qw(scale);
@@ -53,6 +53,16 @@ sub offset_ex {
     return map Slic3r::ExPolygon->new($_), @$offsets;
 }
 
+sub offset2_ex {
+    my ($polygons, $delta1, $delta2, $scale, $joinType, $miterLimit) = @_;
+    $scale      ||= 100000;
+    $joinType   //= JT_MITER;
+    $miterLimit //= 3;
+    
+    my $offsets = Math::Clipper::ex_int_offset2($polygons, $delta1, $delta2, $scale, $joinType, $miterLimit);
+    return map Slic3r::ExPolygon->new($_), @$offsets;
+}
+
 sub diff_ex {
     my ($subject, $clip, $safety_offset) = @_;
     
@@ -120,19 +130,9 @@ sub xor_ex {
     ];
 }
 
-sub ex_int_offset2 {
-    my ($polygons, $delta1, $delta2, $scale, $joinType, $miterLimit) = @_;
-    $scale      ||= 100000;
-    $joinType   //= JT_MITER;
-    $miterLimit //= 3;
-    
-    my $offsets = Math::Clipper::ex_int_offset2($polygons, $delta1, $delta2, $scale, $joinType, $miterLimit);
-    return map Slic3r::ExPolygon->new($_), @$offsets;
-}
-
 sub collapse_ex {
     my ($polygons, $width) = @_;
-    return [ ex_int_offset2($polygons, -$width/2, +$width/2) ];
+    return [ offset2_ex($polygons, -$width/2, +$width/2) ];
 }
 
 sub simplify_polygon {
diff --git a/lib/Slic3r/Layer/Region.pm b/lib/Slic3r/Layer/Region.pm
index 551c3ac63..6974c8f21 100644
--- a/lib/Slic3r/Layer/Region.pm
+++ b/lib/Slic3r/Layer/Region.pm
@@ -4,7 +4,7 @@ use Moo;
 use List::Util qw(sum first);
 use Slic3r::ExtrusionPath ':roles';
 use Slic3r::Geometry qw(PI X1 X2 Y1 Y2 A B scale chained_path_items points_coincide);
-use Slic3r::Geometry::Clipper qw(safety_offset union_ex diff_ex intersection_ex);
+use Slic3r::Geometry::Clipper qw(safety_offset union_ex diff_ex intersection_ex offset2_ex);
 use Slic3r::Surface ':types';
 
 has 'layer' => (
@@ -97,7 +97,7 @@ sub make_surfaces {
     {
         my $width = $self->perimeter_flow->scaled_width;
         my $outgrown = [
-            Slic3r::Geometry::Clipper::ex_int_offset2([ map @$_, map $_->expolygon, @{$self->slices} ], -$width, +$width),
+            offset2_ex([ map @$_, map $_->expolygon, @{$self->slices} ], -$width, +$width),
         ];
         my $diff = diff_ex(
             [ map $_->p, @{$self->slices} ],
@@ -227,7 +227,7 @@ sub make_perimeters {
             # offsetting a polygon can result in one or many offset polygons
             my @new_offsets = ();
             foreach my $expolygon (@last_offsets) {
-                my @offsets = Slic3r::Geometry::Clipper::ex_int_offset2($expolygon, -1.5*$spacing,  +0.5*$spacing);
+                my @offsets = offset2_ex($expolygon, -1.5*$spacing,  +0.5*$spacing);
                 push @new_offsets, @offsets;
                 
                 # where the above check collapses the expolygon, then there's no room for an inner loop
diff --git a/lib/Slic3r/Print.pm b/lib/Slic3r/Print.pm
index 69d84475c..d5589227a 100644
--- a/lib/Slic3r/Print.pm
+++ b/lib/Slic3r/Print.pm
@@ -8,7 +8,7 @@ use Math::ConvexHull::MonotoneChain qw(convex_hull);
 use Slic3r::ExtrusionPath ':roles';
 use Slic3r::Geometry qw(X Y Z X1 Y1 X2 Y2 MIN PI scale unscale move_points nearest_point chained_path_items);
 use Slic3r::Geometry::Clipper qw(diff_ex union_ex union_pt intersection_ex offset
-    ex_int_offset2 offset2 JT_ROUND JT_SQUARE PFT_EVENODD);
+    offset2 JT_ROUND JT_SQUARE PFT_EVENODD);
 use Time::HiRes qw(gettimeofday tv_interval);
 
 has 'config'                 => (is => 'rw', default => sub { Slic3r::Config->new_from_defaults }, trigger => 1);