diff --git a/src/slic3r/GUI/calib_dlg.cpp b/src/slic3r/GUI/calib_dlg.cpp
index 14fdc6b143..d08c8b3a01 100644
--- a/src/slic3r/GUI/calib_dlg.cpp
+++ b/src/slic3r/GUI/calib_dlg.cpp
@@ -347,7 +347,7 @@ void Temp_Calibration_Dlg::on_filament_type_changed(wxCommandEvent& event) {
             end = 230;
             break;
         case tPETG:
-            start = 260;
+            start = 250;
             end = 230;
             break;
         case tTPU: