diff --git a/src/slic3r.cpp b/src/slic3r.cpp
index b0b311e04..b7556eae4 100644
--- a/src/slic3r.cpp
+++ b/src/slic3r.cpp
@@ -154,12 +154,13 @@ main(int argc, char **argv)
             boost::nowide::cout << "File exported to " << outfile << std::endl;
         } else if (cli_config.export_svg) {
             std::string outfile = cli_config.output.value;
-            if (outfile.empty()) outfile = model.objects.front()->input_file + ".svg";
-            
-            SLAPrint print(&model);
-            print.config.apply(print_config, true);
-            print.slice();
-            print.write_svg(outfile);
+            if (outfile.empty()) 
+                outfile = model.objects.front()->input_file + ".svg";
+
+            SLAPrint print(&model); // initialize print with model
+            print.config.apply(print_config, true); // apply configuration
+            print.slice(); // slice file
+            print.write_svg(outfile); // write SVG
             boost::nowide::cout << "SVG file exported to " << outfile << std::endl;
         } else if (cli_config.export_3mf) {
             std::string outfile = cli_config.output.value;
diff --git a/xs/src/libslic3r/SLAPrint.cpp b/xs/src/libslic3r/SLAPrint.cpp
index ceb89018e..f6fd69844 100644
--- a/xs/src/libslic3r/SLAPrint.cpp
+++ b/xs/src/libslic3r/SLAPrint.cpp
@@ -63,7 +63,11 @@ SLAPrint::slice()
         fill->min_spacing   = this->config.get_abs_value("infill_extrusion_width", this->config.layer_height.value);
         fill->angle         = Geometry::deg2rad(this->config.fill_angle.value);
         fill->density       = this->config.fill_density.value/100;
-        
+
+        // Minimum spacing has a lower bound of > 0. Set to a sane default 
+        // if the user gets an invalid value here.
+        fill->min_spacing = (fill->min_spacing <= 0 ? 0.5 : fill->min_spacing);
+
         parallelize<size_t>(
             0,
             this->layers.size()-1,