diff --git a/lib/Slic3r/Geometry.pm b/lib/Slic3r/Geometry.pm
index 93b0924d88..cb452493a9 100644
--- a/lib/Slic3r/Geometry.pm
+++ b/lib/Slic3r/Geometry.pm
@@ -657,7 +657,7 @@ sub _line_intersection2 {
 # 2D
 sub bounding_box {
     my ($points) = @_;
-    use XXX; ZZZ "not" if ref($points->[0]) eq 'ARRAY';
+    #use XXX; ZZZ "not" if ref($points->[0]) eq 'ARRAY';
     my @x = map $_->x, @$points;
     my @y = map $_->y, @$points;    #,,
     my @bb = (undef, undef, undef, undef);
diff --git a/xs/src/ZTable.hpp b/xs/src/ZTable.hpp
index 89ce3f3879..4faa559410 100644
--- a/xs/src/ZTable.hpp
+++ b/xs/src/ZTable.hpp
@@ -1,6 +1,8 @@
 #ifndef slic3r_ZTable_hpp_
 #define slic3r_ZTable_hpp_
 
+#include <vector>
+
 namespace Slic3r {
 
 class ZTable