diff --git a/src/libslic3r/PrintApply.cpp b/src/libslic3r/PrintApply.cpp
index 1c22d5f01..e5218ba3a 100644
--- a/src/libslic3r/PrintApply.cpp
+++ b/src/libslic3r/PrintApply.cpp
@@ -413,6 +413,7 @@ public:
     struct iterator_range : std::pair<const_iterator, const_iterator>
     { 
         using std::pair<const_iterator, const_iterator>::pair;
+        iterator_range(const std::pair<const_iterator, const_iterator> in) : std::pair<const_iterator, const_iterator>(in) {}
 
         const_iterator begin() throw() { return this->first; }
         const_iterator end() throw() { return this->second; }