diff --git a/src/libslic3r/PlaceholderParser.cpp b/src/libslic3r/PlaceholderParser.cpp
index eae8f418b..42caa999e 100644
--- a/src/libslic3r/PlaceholderParser.cpp
+++ b/src/libslic3r/PlaceholderParser.cpp
@@ -270,9 +270,9 @@ namespace client
         {
             std::string out;
             switch (type) {
-            case TYPE_BOOL:   out = boost::to_string(data.b); break;
-            case TYPE_INT:    out = boost::to_string(data.i); break;
-            case TYPE_DOUBLE: out = boost::to_string(data.d); break;
+            case TYPE_BOOL:   out = std::to_string(data.b); break;
+            case TYPE_INT:    out = std::to_string(data.i); break;
+            case TYPE_DOUBLE: out = std::to_string(data.d); break;
             case TYPE_STRING: out = *data.s; break;
             default:          break;
             }
diff --git a/src/libslic3r/Slicing.hpp b/src/libslic3r/Slicing.hpp
index b4a074bb5..6070864e1 100644
--- a/src/libslic3r/Slicing.hpp
+++ b/src/libslic3r/Slicing.hpp
@@ -5,6 +5,7 @@
 
 #include <set>
 #include <vector>
+#include <map>
 
 #include "libslic3r.h"
 namespace Slic3r