diff --git a/src/slic3r/GUI/GCodeViewer.cpp b/src/slic3r/GUI/GCodeViewer.cpp
index cee0b655bd..4a4a8e90e3 100644
--- a/src/slic3r/GUI/GCodeViewer.cpp
+++ b/src/slic3r/GUI/GCodeViewer.cpp
@@ -1,7 +1,6 @@
 #include "libslic3r/libslic3r.h"
 #include "GCodeViewer.hpp"
 
-#if ENABLE_GCODE_VIEWER
 #include "libslic3r/Print.hpp"
 #include "libslic3r/Geometry.hpp"
 #include "libslic3r/Model.hpp"
@@ -2934,4 +2933,3 @@ void GCodeViewer::log_memory_used(const std::string& label, long long additional
 } // namespace GUI
 } // namespace Slic3r
 
-#endif // ENABLE_GCODE_VIEWER
diff --git a/src/slic3r/GUI/GCodeViewer.hpp b/src/slic3r/GUI/GCodeViewer.hpp
index 1a11b633e1..fff80a2245 100644
--- a/src/slic3r/GUI/GCodeViewer.hpp
+++ b/src/slic3r/GUI/GCodeViewer.hpp
@@ -1,7 +1,6 @@
 #ifndef slic3r_GCodeViewer_hpp_
 #define slic3r_GCodeViewer_hpp_
 
-#if ENABLE_GCODE_VIEWER
 #include "3DScene.hpp"
 #include "libslic3r/GCode/GCodeProcessor.hpp"
 #include "GLModel.hpp"
@@ -522,7 +521,5 @@ private:
 } // namespace GUI
 } // namespace Slic3r
 
-#endif // ENABLE_GCODE_VIEWER
-
 #endif // slic3r_GCodeViewer_hpp_