diff --git a/src/test/libslic3r/test_gcodewriter.cpp b/src/test/libslic3r/test_gcodewriter.cpp
index fb756aa9f..62636de72 100644
--- a/src/test/libslic3r/test_gcodewriter.cpp
+++ b/src/test/libslic3r/test_gcodewriter.cpp
@@ -9,7 +9,7 @@ using namespace std::literals::string_literals;
 
 SCENARIO("lift() is not ignored after unlift() at large values of Z", "[!mayfail]") {
     GIVEN("A config from a file and a single extruder.")
-    auto writer {std::make_unique(GCodeWriter())}; // ensure cleanup later
+    auto* writer {new GCodeWriter()};
     auto& config {writer->config};
     config.set_defaults();
     config.load(std::string(testfile_dir) + "test_gcodewriter/config_lift_unlift.ini"s);
@@ -18,13 +18,13 @@ SCENARIO("lift() is not ignored after unlift() at large values of Z", "[!mayfail
     writer->set_extruders(extruder_ids);
     writer->set_extruder(0);
 
-    double trouble_Z = 9007199254740992;
     WHEN("Z is set to 9007199254740992") {
+        double trouble_Z = 9007199254740992;
         writer->travel_to_z(trouble_Z);
         AND_WHEN("GcodeWriter::Lift() is called") {
             REQUIRE(writer->lift().size() > 0);
             AND_WHEN("Z is moved post-lift to the same delta as the config Z lift") {
-                writer->travel_to_z(trouble_z + config.retract_lift);
+                REQUIRE(writer->travel_to_z(trouble_z + config.retract_lift).size() == 0);
                 AND_WHEN("GCodeWriter::Lift() is called after GCodeWriter::Unlift()") {
                     REQUIRE(writer->unlift().size() > 0);
                     THEN("GCodeWriter::Lift() emits gcode.") {
@@ -34,4 +34,5 @@ SCENARIO("lift() is not ignored after unlift() at large values of Z", "[!mayfail
             }
         }
     }
+    delete writer;
 }