diff --git a/src/libslic3r/ClipperUtils.hpp b/src/libslic3r/ClipperUtils.hpp
index 00cf60076b..26585a1fef 100644
--- a/src/libslic3r/ClipperUtils.hpp
+++ b/src/libslic3r/ClipperUtils.hpp
@@ -23,11 +23,6 @@ enum ClipType { ctIntersection, ctUnion, ctDifference, ctXor };
 
 } // namespace Slic3r
 
-// import these wherever we're included
-using Slic3r::jtMiter;
-using Slic3r::jtRound;
-using Slic3r::jtSquare;
-
 namespace Slic3r {
 
 static constexpr const float                        ClipperSafetyOffset     = 10.f;
diff --git a/src/slic3r/GUI/AuxiliaryDataViewModel.hpp b/src/slic3r/GUI/AuxiliaryDataViewModel.hpp
index 026f22421b..c26988e9bb 100644
--- a/src/slic3r/GUI/AuxiliaryDataViewModel.hpp
+++ b/src/slic3r/GUI/AuxiliaryDataViewModel.hpp
@@ -18,8 +18,6 @@
 class AuxiliaryModelNode;
 WX_DEFINE_ARRAY_PTR(AuxiliaryModelNode*, AuxiliaryModelNodePtrArray);
 
-namespace fs = boost::filesystem;
-
 class AuxiliaryModelNode
 {
 public:
diff --git a/src/slic3r/GUI/BBLStatusBar.hpp b/src/slic3r/GUI/BBLStatusBar.hpp
index e643a9b536..1ff2fd6f0f 100644
--- a/src/slic3r/GUI/BBLStatusBar.hpp
+++ b/src/slic3r/GUI/BBLStatusBar.hpp
@@ -73,10 +73,6 @@ private:
     CancelFn m_cancel_cb;
 };
 
-namespace GUI {
-    using Slic3r::BBLStatusBar;
-}
-
 }
 
 #endif // BBLSTATUSBAR_HPP
diff --git a/src/slic3r/GUI/BBLStatusBarBind.hpp b/src/slic3r/GUI/BBLStatusBarBind.hpp
index dd647aa26c..b1b06b60b6 100644
--- a/src/slic3r/GUI/BBLStatusBarBind.hpp
+++ b/src/slic3r/GUI/BBLStatusBarBind.hpp
@@ -80,10 +80,6 @@ private:
     CancelFn m_cancel_cb_fina;
 };
 
-namespace GUI {
-using Slic3r::BBLStatusBarBind;
-}
-
 } // namespace Slic3r
 
 #endif // BBLSTATUSBAR_HPP
diff --git a/src/slic3r/GUI/BBLStatusBarPrint.hpp b/src/slic3r/GUI/BBLStatusBarPrint.hpp
index 0622516791..bc82d80068 100644
--- a/src/slic3r/GUI/BBLStatusBarPrint.hpp
+++ b/src/slic3r/GUI/BBLStatusBarPrint.hpp
@@ -97,10 +97,6 @@ private:
     CancelFn m_cancel_cb_fina;
 };
 
-namespace GUI {
-using Slic3r::BBLStatusBarPrint;
-}
-
 wxDECLARE_EVENT(EVT_SHOW_ERROR_INFO, wxCommandEvent);
 
 } // namespace Slic3r
diff --git a/src/slic3r/GUI/BBLStatusBarSend.hpp b/src/slic3r/GUI/BBLStatusBarSend.hpp
index abe4bece3b..1c4b267c6f 100644
--- a/src/slic3r/GUI/BBLStatusBarSend.hpp
+++ b/src/slic3r/GUI/BBLStatusBarSend.hpp
@@ -99,10 +99,6 @@ private:
     CancelFn m_cancel_cb_fina;
 };
 
-namespace GUI {
-using Slic3r::BBLStatusBarSend;
-}
-
 wxDECLARE_EVENT(EVT_SHOW_ERROR_INFO_SEND, wxCommandEvent);
 wxDECLARE_EVENT(EVT_SHOW_ERROR_FAIL_SEND, wxCommandEvent);
 } // namespace Slic3r
diff --git a/src/slic3r/GUI/Jobs/BindJob.hpp b/src/slic3r/GUI/Jobs/BindJob.hpp
index 06de566e52..f2a8cbe1c4 100644
--- a/src/slic3r/GUI/Jobs/BindJob.hpp
+++ b/src/slic3r/GUI/Jobs/BindJob.hpp
@@ -11,8 +11,6 @@
 
 class wxWindow;
 
-namespace fs = boost::filesystem;
-
 namespace Slic3r {
 namespace GUI {
 
diff --git a/src/slic3r/GUI/Jobs/SendJob.hpp b/src/slic3r/GUI/Jobs/SendJob.hpp
index c77efe69bb..3d96a3a6dd 100644
--- a/src/slic3r/GUI/Jobs/SendJob.hpp
+++ b/src/slic3r/GUI/Jobs/SendJob.hpp
@@ -11,8 +11,6 @@
 #include "Job.hpp"
 #include "PrintJob.hpp"
 
-namespace fs = boost::filesystem;
-
 namespace Slic3r {
 namespace GUI {
 
diff --git a/src/slic3r/GUI/Jobs/UpgradeNetworkJob.hpp b/src/slic3r/GUI/Jobs/UpgradeNetworkJob.hpp
index 77a1e9544d..1b0892d0eb 100644
--- a/src/slic3r/GUI/Jobs/UpgradeNetworkJob.hpp
+++ b/src/slic3r/GUI/Jobs/UpgradeNetworkJob.hpp
@@ -12,8 +12,6 @@
 
 class wxWindow;
 
-namespace fs = boost::filesystem;
-
 namespace Slic3r {
 namespace GUI {
 
diff --git a/src/slic3r/GUI/ProgressStatusBar.hpp b/src/slic3r/GUI/ProgressStatusBar.hpp
index e29883c63e..79343d51df 100644
--- a/src/slic3r/GUI/ProgressStatusBar.hpp
+++ b/src/slic3r/GUI/ProgressStatusBar.hpp
@@ -68,10 +68,6 @@ private:
     CancelFn m_cancel_cb;
 };
 
-namespace GUI {
-    using Slic3r::ProgressStatusBar;
-}
-
 }
 
 #endif // PROGRESSSTATUSBAR_HPP