diff --git a/src/slic3r/CMakeLists.txt b/src/slic3r/CMakeLists.txt
index 77f556f418..eddfdc6af2 100644
--- a/src/slic3r/CMakeLists.txt
+++ b/src/slic3r/CMakeLists.txt
@@ -433,8 +433,8 @@ set(SLIC3R_GUI_SOURCES
     Utils/AstroBox.hpp
     Utils/Repetier.cpp
     Utils/Repetier.hpp
-    GUI/SFCalibrationDlg.hpp
-    GUI/SFCalibrationDlg.cpp
+    GUI/calib_dlg.hpp
+    GUI/calib_dlg.cpp
 )
 
 if (WIN32)
diff --git a/src/slic3r/GUI/MainFrame.hpp b/src/slic3r/GUI/MainFrame.hpp
index 790aeb9346..486e9b2a30 100644
--- a/src/slic3r/GUI/MainFrame.hpp
+++ b/src/slic3r/GUI/MainFrame.hpp
@@ -29,7 +29,7 @@
 
 
 #include "PrinterWebView.hpp"
-#include "SFCalibrationDlg.hpp"
+#include "calib_dlg.hpp"
 
 #define ENABEL_PRINT_ALL 0
 
diff --git a/src/slic3r/GUI/SFCalibrationDlg.cpp b/src/slic3r/GUI/calib_dlg.cpp
similarity index 99%
rename from src/slic3r/GUI/SFCalibrationDlg.cpp
rename to src/slic3r/GUI/calib_dlg.cpp
index 7591e270f2..fd666d02d2 100644
--- a/src/slic3r/GUI/SFCalibrationDlg.cpp
+++ b/src/slic3r/GUI/calib_dlg.cpp
@@ -1,4 +1,4 @@
-#include "SFCalibrationDlg.hpp"
+#include "calib_dlg.hpp"
 #include "GUI_App.hpp"
 #include "MsgDialog.hpp"
 #include "I18N.hpp"
@@ -73,7 +73,7 @@ PA_Calibration_Dlg::PA_Calibration_Dlg(wxWindow* parent, wxWindowID id, Plater*
 
     v_sizer->Add(settings_sizer);
 	v_sizer->Add(0, FromDIP(10), 0, wxEXPAND, 5);
-    m_btnStart = new Button(this, _L("Start"));
+    m_btnStart = new Button(this, _L("OK"));
     StateColor btn_bg_green(std::pair<wxColour, int>(wxColour(0, 137, 123), StateColor::Pressed),
 		std::pair<wxColour, int>(wxColour(38, 166, 154), StateColor::Hovered),
 		std::pair<wxColour, int>(wxColour(0, 150, 136), StateColor::Normal));
diff --git a/src/slic3r/GUI/SFCalibrationDlg.hpp b/src/slic3r/GUI/calib_dlg.hpp
similarity index 94%
rename from src/slic3r/GUI/SFCalibrationDlg.hpp
rename to src/slic3r/GUI/calib_dlg.hpp
index 4f75b2f274..0f576b2950 100644
--- a/src/slic3r/GUI/SFCalibrationDlg.hpp
+++ b/src/slic3r/GUI/calib_dlg.hpp
@@ -1,5 +1,5 @@
-#ifndef slic3r_SFCalibrationDlg_hpp_
-#define slic3r_SFCalibrationDlg_hpp_
+#ifndef slic3r_calib_dlg_hpp_
+#define slic3r_calib_dlg_hpp_
 
 #include "wxExtensions.hpp"
 #include "GUI_Utils.hpp"