diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index 3425cfd7a..ba1c7f056 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -591,7 +591,7 @@ void PrintConfigDef::init_fff_params()
         "Fan speeds for overhang sizes in between are calculated via linear interpolation. ");
 
     def           = this->add("overhang_fan_speed_0", coInts);
-    def->label    = L("speed for 0\% overlap (bridge)");
+    def->label    = L("speed for 0% overlap (bridge)");
     def->tooltip  = fan_speed_setting_description;
     def->sidetext = L("%");
     def->min      = 0;
@@ -600,7 +600,7 @@ void PrintConfigDef::init_fff_params()
     def->set_default_value(new ConfigOptionInts{0});
 
     def           = this->add("overhang_fan_speed_1", coInts);
-    def->label    = L("speed for 25\% overlap");
+    def->label    = L("speed for 25% overlap");
     def->tooltip  = fan_speed_setting_description;
     def->sidetext = L("%");
     def->min      = 0;
@@ -609,7 +609,7 @@ void PrintConfigDef::init_fff_params()
     def->set_default_value(new ConfigOptionInts{0});
 
     def           = this->add("overhang_fan_speed_2", coInts);
-    def->label    = L("speed for 50\% overlap");
+    def->label    = L("speed for 50% overlap");
     def->tooltip  = fan_speed_setting_description;
     def->sidetext = L("%");
     def->min      = 0;
@@ -618,7 +618,7 @@ void PrintConfigDef::init_fff_params()
     def->set_default_value(new ConfigOptionInts{0});
 
     def           = this->add("overhang_fan_speed_3", coInts);
-    def->label    = L("speed for 75\% overlap");
+    def->label    = L("speed for 75% overlap");
     def->tooltip  = fan_speed_setting_description;
     def->sidetext = L("%");
     def->min      = 0;
diff --git a/src/libslic3r/PrintObject.cpp b/src/libslic3r/PrintObject.cpp
index 1511b72cd..f87741cfa 100644
--- a/src/libslic3r/PrintObject.cpp
+++ b/src/libslic3r/PrintObject.cpp
@@ -1737,7 +1737,7 @@ void PrintObject::bridge_over_infill()
 
                     lower_layers_sparse_infill.insert(lower_layers_sparse_infill.end(), special_infill.begin(), special_infill.end());
 
-                    if (shrink(lower_layers_sparse_infill, 3.0 * scaled(max_bridge_flow_height[candidates.first])).empty()) {
+                    if (shrink(lower_layers_sparse_infill, 3.0 * scale_(max_bridge_flow_height[candidates.first])).empty()) {
                         continue;
                     }
                 }
diff --git a/src/libslic3r/SupportSpotsGenerator.cpp b/src/libslic3r/SupportSpotsGenerator.cpp
index d45f82db8..5062fe18a 100644
--- a/src/libslic3r/SupportSpotsGenerator.cpp
+++ b/src/libslic3r/SupportSpotsGenerator.cpp
@@ -901,7 +901,7 @@ std::tuple<SupportPoints, PartialObjects> check_stability(const PrintObject *po,
                                                                   params)) {
                                 if (bridge.support_point_generated.has_value()) {
                                     reckon_new_support_point(*bridge.support_point_generated, create_support_point_position(bridge.b),
-                                                             -EPSILON, Vec2f::Zero());
+                                                             float(-EPSILON), Vec2f::Zero());
                                 }
                             }
                         }
@@ -916,7 +916,7 @@ std::tuple<SupportPoints, PartialObjects> check_stability(const PrintObject *po,
                                                                                          params);
                     for (const ExtrusionLine &perim : perims) {
                         if (perim.support_point_generated.has_value()) {
-                            reckon_new_support_point(*perim.support_point_generated, create_support_point_position(perim.b), -EPSILON,
+                            reckon_new_support_point(*perim.support_point_generated, create_support_point_position(perim.b), float(-EPSILON),
                                                      Vec2f::Zero());
                         }
                         if (perim.is_external_perimeter()) {