diff --git a/lib/Slic3r/Perimeter.pm b/lib/Slic3r/Perimeter.pm
index 2b64f83a88..3c52eb9f0c 100644
--- a/lib/Slic3r/Perimeter.pm
+++ b/lib/Slic3r/Perimeter.pm
@@ -64,7 +64,7 @@ sub make_perimeter {
             push @{ $layer->thin_fills },
                 grep $_,
                 map $_->medial_axis(scale $Slic3r::flow_width),
-                @$small_gaps;
+                @$small_gaps if 0;
         }
     }