diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index e4e6d95b53..cb48ca8212 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -10351,7 +10351,9 @@ void Plater::reslice()
     this->stop_jobs();
 
     // regenerate CalibPressureAdvancePattern custom G-code to apply changes
-    if (model().calib_pa_pattern) {
+    if (p->background_process.fff_print()->calib_mode() == CalibMode::Calib_PA_Pattern) {
+        assert(model().calib_pa_pattern);
+
         PresetBundle* preset_bundle = wxGetApp().preset_bundle;
 
         model().calib_pa_pattern->generate_custom_gcodes(