diff --git a/src/libslic3r/Fill/FillBase.hpp b/src/libslic3r/Fill/FillBase.hpp
index 5ff6d4a313..77799f6fac 100644
--- a/src/libslic3r/Fill/FillBase.hpp
+++ b/src/libslic3r/Fill/FillBase.hpp
@@ -6,6 +6,8 @@
 #include <float.h>
 #include <stdint.h>
 
+#include <type_traits>
+
 #include "../libslic3r.h"
 #include "../BoundingBox.hpp"
 #include "../PrintConfig.hpp"
diff --git a/src/libslic3r/Slicing.hpp b/src/libslic3r/Slicing.hpp
index bd3bf7c0bd..028605fd5d 100644
--- a/src/libslic3r/Slicing.hpp
+++ b/src/libslic3r/Slicing.hpp
@@ -3,10 +3,11 @@
 #ifndef slic3r_Slicing_hpp_
 #define slic3r_Slicing_hpp_
 
-#include <set>
-#include <vector>
-#include <map>
 #include <cstring>
+#include <map>
+#include <set>
+#include <type_traits>
+#include <vector>
 
 #include "libslic3r.h"
 namespace Slic3r