diff --git a/xs/src/libslic3r/Format/3mf.cpp b/xs/src/libslic3r/Format/3mf.cpp
index 9be8cba7eb..b92d969dfa 100644
--- a/xs/src/libslic3r/Format/3mf.cpp
+++ b/xs/src/libslic3r/Format/3mf.cpp
@@ -62,6 +62,9 @@ const char* LAST_TRIANGLE_ID_ATTR = "lastid";
 const char* OBJECT_TYPE = "object";
 const char* VOLUME_TYPE = "volume";
 
+const char* NAME_KEY = "name";
+const char* MODIFIER_KEY = "modifier";
+
 const unsigned int VALID_OBJECT_TYPES_COUNT = 1;
 const char* VALID_OBJECT_TYPES[] =
 {
@@ -1350,8 +1353,10 @@ namespace Slic3r {
             // apply volume's name and config data
             for (const Metadata& metadata : volume_data.metadata)
             {
-                if (metadata.key == "name")
+                if (metadata.key == NAME_KEY)
                     volume->name = metadata.value;
+                else if ((metadata.key == MODIFIER_KEY) && (metadata.value == "1"))
+                    volume->modifier = true;
                 else
                     volume->config.set_deserialize(metadata.key, metadata.value);
             }
@@ -1807,7 +1812,11 @@ namespace Slic3r {
 
                             // stores volume's name
                             if (!volume->name.empty())
-                                stream << "   <" << METADATA_TAG << " " << TYPE_ATTR << "=\"" << VOLUME_TYPE << "\" " << KEY_ATTR << "=\"name\" " << VALUE_ATTR << "=\"" << volume->name << "\"/>\n";
+                                stream << "   <" << METADATA_TAG << " " << TYPE_ATTR << "=\"" << VOLUME_TYPE << "\" " << KEY_ATTR << "=\"" << NAME_KEY << "\" " << VALUE_ATTR << "=\"" << volume->name << "\"/>\n";
+
+                            // stores volume's modifier field
+                            if (volume->modifier)
+                                stream << "   <" << METADATA_TAG << " " << TYPE_ATTR << "=\"" << VOLUME_TYPE << "\" " << KEY_ATTR << "=\"" << MODIFIER_KEY << "\" " << VALUE_ATTR << "=\"1\"/>\n";
 
                             // stores volume's config data
                             for (const std::string& key : volume->config.keys())