diff --git a/src/slic3r/GUI/DoubleSlider.cpp b/src/slic3r/GUI/DoubleSlider.cpp
index f0940fbfd..4732ff261 100644
--- a/src/slic3r/GUI/DoubleSlider.cpp
+++ b/src/slic3r/GUI/DoubleSlider.cpp
@@ -1,10 +1,9 @@
-#if ENABLE_GCODE_VIEWER
 #include "libslic3r/libslic3r.h"
-#endif // ENABLE_GCODE_VIEWER
-#include "wxExtensions.hpp"
 #if ENABLE_GCODE_VIEWER
+#include "DoubleSlider.hpp"
 #include "libslic3r/GCode.hpp"
 #else
+#include "wxExtensions.hpp"
 #include "libslic3r/GCode/PreviewData.hpp"
 #endif // ENABLE_GCODE_VIEWER
 #include "GUI.hpp"
diff --git a/src/slic3r/GUI/DoubleSlider.hpp b/src/slic3r/GUI/DoubleSlider.hpp
index bf8f54d6c..36bff17e9 100644
--- a/src/slic3r/GUI/DoubleSlider.hpp
+++ b/src/slic3r/GUI/DoubleSlider.hpp
@@ -4,7 +4,9 @@
 #include "libslic3r/CustomGCode.hpp"
 #include "wxExtensions.hpp"
 
+#if !ENABLE_GCODE_VIEWER
 #include <wx/wx.h>
+#endif // !ENABLE_GCODE_VIEWER
 #include <wx/window.h>
 #include <wx/control.h>
 #include <wx/dc.h>