diff --git a/xs/src/libslic3r/GCode.cpp b/xs/src/libslic3r/GCode.cpp
index 38119a1a4..0d924dad0 100644
--- a/xs/src/libslic3r/GCode.cpp
+++ b/xs/src/libslic3r/GCode.cpp
@@ -426,7 +426,10 @@ GCode::extrude(ExtrusionLoop loop, std::string description, double speed)
         && loop.length() <= SMALL_PERIMETER_LENGTH
         && speed == -1)
         speed = this->config.get_abs_value("small_perimeter_speed");
-    
+        description = "small perimeter";
+    if (paths.front().role == erExternalPerimeter)
+        description = std::string("external ") + description;
+
     // extrude along the path
     std::string gcode;
     for (ExtrusionPaths::const_iterator path = paths.begin(); path != paths.end(); ++path)