diff --git a/src/test/libslic3r/test_gcodewriter.cpp b/src/test/libslic3r/test_gcodewriter.cpp
index 6e7f88f5d..f454f0385 100644
--- a/src/test/libslic3r/test_gcodewriter.cpp
+++ b/src/test/libslic3r/test_gcodewriter.cpp
@@ -24,7 +24,7 @@ SCENARIO("lift() is not ignored after unlift() at large values of Z", "[!mayfail
             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") {
-                    REQUIRE(writer.travel_to_z(trouble_Z + config.retract_lift).size() == 0);
+                    REQUIRE(writer.travel_to_z(trouble_Z + config.retract_lift.value).size() == 0);
                     AND_WHEN("GCodeWriter::Lift() is called after GCodeWriter::Unlift()") {
                         REQUIRE(writer.unlift().size() > 0);
                         THEN("GCodeWriter::Lift() emits gcode.") {