diff --git a/src/slic3r/Config/Snapshot.cpp b/src/slic3r/Config/Snapshot.cpp
index e92c829c0a..35bfde0b6b 100644
--- a/src/slic3r/Config/Snapshot.cpp
+++ b/src/slic3r/Config/Snapshot.cpp
@@ -12,10 +12,10 @@
 #include <boost/property_tree/ini_parser.hpp>
 #include <boost/property_tree/ptree.hpp>
 
-#include "../../libslic3r/libslic3r.h"
-#include "../../libslic3r/Config.hpp"
-#include "../../libslic3r/FileParserError.hpp"
-#include "../../libslic3r/Utils.hpp"
+#include "libslic3r/libslic3r.h"
+#include "libslic3r/Config.hpp"
+#include "libslic3r/FileParserError.hpp"
+#include "libslic3r/Utils.hpp"
 
 #define SLIC3R_SNAPSHOTS_DIR "snapshots"
 #define SLIC3R_SNAPSHOT_FILE "snapshot.ini"
diff --git a/src/slic3r/Config/Version.cpp b/src/slic3r/Config/Version.cpp
index a85322ecaf..48ace7b609 100644
--- a/src/slic3r/Config/Version.cpp
+++ b/src/slic3r/Config/Version.cpp
@@ -4,10 +4,10 @@
 #include <boost/algorithm/string/trim.hpp>
 #include <boost/nowide/fstream.hpp>
 
-#include "../../libslic3r/libslic3r.h"
-#include "../../libslic3r/Config.hpp"
-#include "../../libslic3r/FileParserError.hpp"
-#include "../../libslic3r/Utils.hpp"
+#include "libslic3r/libslic3r.h"
+#include "libslic3r/Config.hpp"
+#include "libslic3r/FileParserError.hpp"
+#include "libslic3r/Utils.hpp"
 
 namespace Slic3r { 
 namespace GUI {
diff --git a/src/slic3r/Config/Version.hpp b/src/slic3r/Config/Version.hpp
index acb0ae4600..e689286af8 100644
--- a/src/slic3r/Config/Version.hpp
+++ b/src/slic3r/Config/Version.hpp
@@ -6,7 +6,7 @@
 
 #include <boost/filesystem.hpp>
 
-#include "../../libslic3r/FileParserError.hpp"
+#include "libslic3r/FileParserError.hpp"
 #include "../Utils/Semver.hpp"
 
 namespace Slic3r { 
diff --git a/src/slic3r/GUI/AppConfig.cpp b/src/slic3r/GUI/AppConfig.cpp
index 7a277b1191..d85cf334bf 100644
--- a/src/slic3r/GUI/AppConfig.cpp
+++ b/src/slic3r/GUI/AppConfig.cpp
@@ -1,5 +1,5 @@
-#include "../../libslic3r/libslic3r.h"
-#include "../../libslic3r/Utils.hpp"
+#include "libslic3r/libslic3r.h"
+#include "libslic3r/Utils.hpp"
 #include "AppConfig.hpp"
 
 #include <stdio.h>
diff --git a/src/slic3r/GUI/BitmapCache.hpp b/src/slic3r/GUI/BitmapCache.hpp
index bec9a7ad25..0cb70d28b9 100644
--- a/src/slic3r/GUI/BitmapCache.hpp
+++ b/src/slic3r/GUI/BitmapCache.hpp
@@ -6,8 +6,8 @@
     #include <wx/wx.h>
 #endif
 
-#include "../../libslic3r/libslic3r.h"
-#include "../../libslic3r/Config.hpp"
+#include "libslic3r/libslic3r.h"
+#include "libslic3r/Config.hpp"
 
 #include "GUI.hpp"
 
diff --git a/src/slic3r/GUI/GLCanvas3DManager.hpp b/src/slic3r/GUI/GLCanvas3DManager.hpp
index 2424b32f0c..1ed4a8251c 100644
--- a/src/slic3r/GUI/GLCanvas3DManager.hpp
+++ b/src/slic3r/GUI/GLCanvas3DManager.hpp
@@ -1,7 +1,7 @@
 #ifndef slic3r_GLCanvas3DManager_hpp_
 #define slic3r_GLCanvas3DManager_hpp_
 
-#include "../../libslic3r/BoundingBox.hpp"
+#include "libslic3r/BoundingBox.hpp"
 
 #include <map>
 #include <vector>
diff --git a/src/slic3r/GUI/GLGizmo.hpp b/src/slic3r/GUI/GLGizmo.hpp
index f695083994..4229d0362f 100644
--- a/src/slic3r/GUI/GLGizmo.hpp
+++ b/src/slic3r/GUI/GLGizmo.hpp
@@ -5,8 +5,8 @@
 
 #include "../../slic3r/GUI/GLTexture.hpp"
 #include "../../slic3r/GUI/GLCanvas3D.hpp"
-#include "../../libslic3r/Point.hpp"
-#include "../../libslic3r/BoundingBox.hpp"
+#include "libslic3r/Point.hpp"
+#include "libslic3r/BoundingBox.hpp"
 
 #include <array>
 #include <vector>
diff --git a/src/slic3r/GUI/GLShader.cpp b/src/slic3r/GUI/GLShader.cpp
index 623e02a057..791f452efd 100644
--- a/src/slic3r/GUI/GLShader.cpp
+++ b/src/slic3r/GUI/GLShader.cpp
@@ -2,7 +2,7 @@
 
 #include "GLShader.hpp"
 
-#include "../../libslic3r/Utils.hpp"
+#include "libslic3r/Utils.hpp"
 #include <boost/nowide/fstream.hpp>
 
 #include <string>
diff --git a/src/slic3r/GUI/GLShader.hpp b/src/slic3r/GUI/GLShader.hpp
index 803b2f1543..0634cce6e9 100644
--- a/src/slic3r/GUI/GLShader.hpp
+++ b/src/slic3r/GUI/GLShader.hpp
@@ -1,8 +1,8 @@
 #ifndef slic3r_GLShader_hpp_
 #define slic3r_GLShader_hpp_
 
-#include "../../libslic3r/libslic3r.h"
-#include "../../libslic3r/Point.hpp"
+#include "libslic3r/libslic3r.h"
+#include "libslic3r/Point.hpp"
 
 namespace Slic3r {
 
diff --git a/src/slic3r/GUI/GLToolbar.cpp b/src/slic3r/GUI/GLToolbar.cpp
index d3bd54d569..92b3e96afe 100644
--- a/src/slic3r/GUI/GLToolbar.cpp
+++ b/src/slic3r/GUI/GLToolbar.cpp
@@ -1,7 +1,8 @@
-#include "../../libslic3r/Point.hpp"
+#include "libslic3r/Point.hpp"
+#include "libslic3r/libslic3r.h"
+
 #include "GLToolbar.hpp"
 
-#include "../../libslic3r/libslic3r.h"
 #include "../../slic3r/GUI/GLCanvas3D.hpp"
 
 #include <GL/glew.h>
diff --git a/src/slic3r/GUI/GUI_Preview.hpp b/src/slic3r/GUI/GUI_Preview.hpp
index bfccf9a98d..2aebdccd5a 100644
--- a/src/slic3r/GUI/GUI_Preview.hpp
+++ b/src/slic3r/GUI/GUI_Preview.hpp
@@ -2,7 +2,7 @@
 #define slic3r_GUI_Preview_hpp_
 
 #include <wx/panel.h>
-#include "../../libslic3r/Point.hpp"
+#include "libslic3r/Point.hpp"
 
 #include <string>
 
diff --git a/src/slic3r/Utils/Http.cpp b/src/slic3r/Utils/Http.cpp
index 9b67ceea87..67c24f3f4a 100644
--- a/src/slic3r/Utils/Http.cpp
+++ b/src/slic3r/Utils/Http.cpp
@@ -10,7 +10,7 @@
 
 #include <curl/curl.h>
 
-#include "../../libslic3r/libslic3r.h"
+#include "libslic3r/libslic3r.h"
 
 namespace fs = boost::filesystem;