diff --git a/t/perimeters.t b/t/perimeters.t
index b1706f29c..c50ae79c8 100644
--- a/t/perimeters.t
+++ b/t/perimeters.t
@@ -317,6 +317,7 @@ use Slic3r::Test;
     $config->set('nozzle_diameter', [0.4]);
     $config->set('perimeters', 2);
     $config->set('perimeter_extrusion_width', 0.4);
+    $config->set('external_perimeter_extrusion_width', 0.4);
     $config->set('infill_extrusion_width', 0.53);
     $config->set('solid_infill_extrusion_width', 0.53);
     
diff --git a/xs/src/libslic3r/Flow.cpp b/xs/src/libslic3r/Flow.cpp
index 0f3616ca5..1f787f50e 100644
--- a/xs/src/libslic3r/Flow.cpp
+++ b/xs/src/libslic3r/Flow.cpp
@@ -41,7 +41,6 @@ static inline float auto_extrusion_width(FlowRole role, float nozzle_diameter, f
         return std::max(width, nozzle_diameter * 1.05f);
     }
 #else
-//        1.125f * nozzle_diameter;
     switch (role) {
     case frSupportMaterial:
     case frSupportMaterialInterface:
@@ -52,7 +51,7 @@ static inline float auto_extrusion_width(FlowRole role, float nozzle_diameter, f
     case frPerimeter:
     case frSolidInfill:
     case frInfill:
-        1.125f * nozzle_diameter;
+        return 1.125f * nozzle_diameter;
     }
 #endif
 }
diff --git a/xs/src/libslic3r/PrintConfig.cpp b/xs/src/libslic3r/PrintConfig.cpp
index 4d1479a68..df9837107 100644
--- a/xs/src/libslic3r/PrintConfig.cpp
+++ b/xs/src/libslic3r/PrintConfig.cpp
@@ -693,7 +693,7 @@ PrintConfigDef::PrintConfigDef()
     def->sidetext = "mm or %";
     def->cli = "infill-overlap=s";
     def->ratio_over = "perimeter_extrusion_width";
-    def->default_value = new ConfigOptionFloatOrPercent(55, true);
+    def->default_value = new ConfigOptionFloatOrPercent(25, true);
 
     def = this->add("infill_speed", coFloat);
     def->label = "Infill";