diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index ce3da04890..090b91c912 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -5341,7 +5341,7 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
                 ref_speed = EXTRUDER_CONFIG(filament_max_volumetric_speed) / _mm3_per_mm;
 
             if (EXTRUDER_CONFIG(filament_max_volumetric_speed) > 0) {
-                ref_speed = std::min(ref_speed, EXTRUDER_CONFIG(filament_max_volumetric_speed) / path.mm3_per_mm);
+                ref_speed = std::min(ref_speed, EXTRUDER_CONFIG(filament_max_volumetric_speed) / _mm3_per_mm);
             }
             if (sloped) {
                 ref_speed = std::min(ref_speed, m_config.scarf_joint_speed.get_abs_value(ref_speed));