diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index 85f08d3e2f..126112f0d1 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -1435,6 +1435,7 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
     // modifies m_silent_time_estimator_enabled
     DoExport::init_gcode_processor(print.config(), m_processor, m_silent_time_estimator_enabled);
     const bool is_bbl_printers = print.is_BBL_printer();
+    m_calib_config.clear();
     // resets analyzer's tracking data
     m_last_height  = 0.f;
     m_last_layer_z = 0.f;