diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index 1911b9100..f6460b0a5 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -3253,8 +3253,8 @@ void PrintConfigDef::init_fff_params()
     def->label = L("merging with perimeters");
     def->full_label = L("Thin wall merge");
     def->category = OptionCategory::perimeter;
-    def->tooltip = L("Allow the external perimeter to merge the thin walls in the path. !!! IF you disable this setting, please explain me why (via help->report issue)"
-        " because I'm going to DELETE this setting next release, as i don't see why someone may want to disable it.");
+    def->tooltip = L("Allow the external perimeter to merge the thin walls in the path."
+                    " You can deactivate it if you use thin walls as a custom support, to reduce adhesion a little bit.");
     def->mode = comExpert;
     def->set_default_value(new ConfigOptionBool(true));
 
diff --git a/src/slic3r/GUI/Preset.cpp b/src/slic3r/GUI/Preset.cpp
index 664a21eaf..4a70e61e7 100644
--- a/src/slic3r/GUI/Preset.cpp
+++ b/src/slic3r/GUI/Preset.cpp
@@ -477,7 +477,7 @@ const std::vector<std::string>& Preset::print_options()
         "bridge_acceleration", "first_layer_acceleration", "default_acceleration", 
         "duplicate_distance",
         "skirts", "skirt_distance", "skirt_height",
-		"skirt_extrusion_width",
+        "skirt_extrusion_width",
         "min_skirt_length",
         "draft_shield",
         "brim_inside_holes",