diff --git a/src/slic3r/GUI/CalibrationPanel.cpp b/src/slic3r/GUI/CalibrationPanel.cpp
index f6ac3d10d..5ecc3eeda 100644
--- a/src/slic3r/GUI/CalibrationPanel.cpp
+++ b/src/slic3r/GUI/CalibrationPanel.cpp
@@ -471,7 +471,7 @@ void CalibrationPanel::init_tabpanel() {
 
     m_cali_panels[0] = new PressureAdvanceWizard(m_tabpanel);
     m_cali_panels[1] = new FlowRateWizard(m_tabpanel);
-    m_cali_panels[2] = new MaxVolumetricSpeedWizard(m_tabpanel);
+    //m_cali_panels[2] = new MaxVolumetricSpeedWizard(m_tabpanel);
 
     for (int i = 0; i < (int)CALI_MODE_COUNT; i++) {
         bool selected = false;
diff --git a/src/slic3r/GUI/CalibrationPanel.hpp b/src/slic3r/GUI/CalibrationPanel.hpp
index 1ace50e0f..52dfa249c 100644
--- a/src/slic3r/GUI/CalibrationPanel.hpp
+++ b/src/slic3r/GUI/CalibrationPanel.hpp
@@ -14,7 +14,7 @@ namespace Slic3r { namespace GUI {
 #define SELECT_MACHINE_REMIND wxColour(255,111,0)
 #define SELECT_MACHINE_LIGHT_GREEN wxColour(219, 253, 231)
 
-#define CALI_MODE_COUNT  3
+#define CALI_MODE_COUNT  2
 
 
 wxString get_calibration_type_name(CalibMode cali_mode);