diff --git a/src/libslic3r/PerimeterGenerator.cpp b/src/libslic3r/PerimeterGenerator.cpp
index 8aff3adfc..311935ca9 100644
--- a/src/libslic3r/PerimeterGenerator.cpp
+++ b/src/libslic3r/PerimeterGenerator.cpp
@@ -97,7 +97,8 @@ void PerimeterGenerator::process()
         // We consider overhang any part where the entire nozzle diameter is not supported by the
         // lower layer, so we take lower slices and offset them by half the nozzle diameter used 
         // in the current layer
-        this->_lower_slices_p = offset(*this->lower_slices, double(scale_(config->overhangs_width.get_abs_value(nozzle_diameter))));
+        double offset_val = double(scale_(config->overhangs_width.get_abs_value(nozzle_diameter))) - (float)(ext_perimeter_width / 2);
+        this->_lower_slices_p = offset(*this->lower_slices, offset_val);
     }
 
     // have to grown the perimeters if mill post-process