diff --git a/src/libslic3r/Format/3mf.cpp b/src/libslic3r/Format/3mf.cpp
index 49c336e621..eb48226343 100644
--- a/src/libslic3r/Format/3mf.cpp
+++ b/src/libslic3r/Format/3mf.cpp
@@ -2752,17 +2752,18 @@ namespace Slic3r {
                             stream << "\"/>\n";
 
                             // stores volume's source data
-                            if (!volume->source.input_file.empty())
                             {
                                 std::string input_file = xml_escape(m_fullpath_sources ? volume->source.input_file : boost::filesystem::path(volume->source.input_file).filename().string());
                                 std::string prefix = std::string("   <") + METADATA_TAG + " " + TYPE_ATTR + "=\"" + VOLUME_TYPE + "\" " + KEY_ATTR + "=\"";
-                                stream << prefix << SOURCE_FILE_KEY      << "\" " << VALUE_ATTR << "=\"" << input_file << "\"/>\n";
-                                stream << prefix << SOURCE_OBJECT_ID_KEY << "\" " << VALUE_ATTR << "=\"" << volume->source.object_idx << "\"/>\n";
-                                stream << prefix << SOURCE_VOLUME_ID_KEY << "\" " << VALUE_ATTR << "=\"" << volume->source.volume_idx << "\"/>\n";
-                                stream << prefix << SOURCE_OFFSET_X_KEY  << "\" " << VALUE_ATTR << "=\"" << volume->source.mesh_offset(0) << "\"/>\n";
-                                stream << prefix << SOURCE_OFFSET_Y_KEY  << "\" " << VALUE_ATTR << "=\"" << volume->source.mesh_offset(1) << "\"/>\n";
-                                stream << prefix << SOURCE_OFFSET_Z_KEY  << "\" " << VALUE_ATTR << "=\"" << volume->source.mesh_offset(2) << "\"/>\n";
-                                stream << prefix << SOURCE_OFFSET_Z_KEY  << "\" " << VALUE_ATTR << "=\"" << volume->source.mesh_offset(2) << "\"/>\n";
+                                if (! volume->source.input_file.empty()) {
+                                    stream << prefix << SOURCE_FILE_KEY      << "\" " << VALUE_ATTR << "=\"" << input_file << "\"/>\n";
+                                    stream << prefix << SOURCE_OBJECT_ID_KEY << "\" " << VALUE_ATTR << "=\"" << volume->source.object_idx << "\"/>\n";
+                                    stream << prefix << SOURCE_VOLUME_ID_KEY << "\" " << VALUE_ATTR << "=\"" << volume->source.volume_idx << "\"/>\n";
+                                    stream << prefix << SOURCE_OFFSET_X_KEY  << "\" " << VALUE_ATTR << "=\"" << volume->source.mesh_offset(0) << "\"/>\n";
+                                    stream << prefix << SOURCE_OFFSET_Y_KEY  << "\" " << VALUE_ATTR << "=\"" << volume->source.mesh_offset(1) << "\"/>\n";
+                                    stream << prefix << SOURCE_OFFSET_Z_KEY  << "\" " << VALUE_ATTR << "=\"" << volume->source.mesh_offset(2) << "\"/>\n";
+                                    stream << prefix << SOURCE_OFFSET_Z_KEY  << "\" " << VALUE_ATTR << "=\"" << volume->source.mesh_offset(2) << "\"/>\n";
+                                }
                                 if (volume->source.is_converted_from_inches)
                                     stream << prefix << SOURCE_IN_INCHES << "\" " << VALUE_ATTR << "=\"1\"/>\n";
                             }
diff --git a/src/libslic3r/Format/AMF.cpp b/src/libslic3r/Format/AMF.cpp
index 2312005a10..07095d10b9 100644
--- a/src/libslic3r/Format/AMF.cpp
+++ b/src/libslic3r/Format/AMF.cpp
@@ -1213,9 +1213,9 @@ bool store_amf(const char* path, Model* model, const DynamicPrintConfig* config,
                 stream << "        <metadata type=\"slic3r.source_offset_x\">" << volume->source.mesh_offset(0) << "</metadata>\n";
                 stream << "        <metadata type=\"slic3r.source_offset_y\">" << volume->source.mesh_offset(1) << "</metadata>\n";
                 stream << "        <metadata type=\"slic3r.source_offset_z\">" << volume->source.mesh_offset(2) << "</metadata>\n";
-                if (volume->source.is_converted_from_inches)
-                    stream << "        <metadata type=\"slic3r.source_in_inches\">1</metadata>\n";
             }
+            if (volume->source.is_converted_from_inches)
+                stream << "        <metadata type=\"slic3r.source_in_inches\">1</metadata>\n";
 			stream << std::setprecision(std::numeric_limits<float>::max_digits10);
             const indexed_triangle_set &its = volume->mesh().its;
             for (size_t i = 0; i < its.indices.size(); ++i) {