diff --git a/resources/ui_layout/print.ui b/resources/ui_layout/print.ui
index 971c1d845..3ba018d23 100644
--- a/resources/ui_layout/print.ui
+++ b/resources/ui_layout/print.ui
@@ -159,6 +159,7 @@ group:title_width$19:Ironing post-process (This will go on top of infills and pe
 	line:Tuning ironing
 		setting:label_width$9:width$5:ironing_flowrate
 		setting:label_width$26:width$5:ironing_spacing
+		setting:label_width$26:width$5:ironing_angle
 	end_line
 
 page:Skirt & Brim:skirt+brim
diff --git a/src/libslic3r/Fill/Fill.cpp b/src/libslic3r/Fill/Fill.cpp
index 8806fe203..ba4a8c638 100644
--- a/src/libslic3r/Fill/Fill.cpp
+++ b/src/libslic3r/Fill/Fill.cpp
@@ -584,7 +584,7 @@ void Layer::make_ironing()
                 ironing_params.line_spacing = config.ironing_spacing;
                 ironing_params.height         = default_layer_height * 0.01 * config.ironing_flowrate;
                 ironing_params.speed         = config.ironing_speed;
-                ironing_params.angle         = config.fill_angle * M_PI / 180.;
+                ironing_params.angle         = config.ironing_angle <0 ? config.fill_angle * M_PI / 180. : config.ironing_angle * M_PI / 180.;
                 ironing_params.layerm         = layerm;
                 by_extruder.emplace_back(ironing_params);
             }
diff --git a/src/libslic3r/Preset.cpp b/src/libslic3r/Preset.cpp
index a30786fdc..c968615ae 100644
--- a/src/libslic3r/Preset.cpp
+++ b/src/libslic3r/Preset.cpp
@@ -479,6 +479,7 @@ const std::vector<std::string>& Preset::print_options()
         "ironing_flowrate",
         "ironing_speed",
         "ironing_spacing",
+        "ironing_angle",
         "fill_angle",
         "fill_angle_increment",
         "bridge_angle", 
diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index e689d665a..9aecbe507 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -2160,6 +2160,15 @@ void PrintConfigDef::init_fff_params()
     def->mode = comAdvanced;
     def->set_default_value(new ConfigOptionBool(false));
 
+    def = this->add("ironing_angle", coFloat);
+    def->label = L("Ironing angle");
+    def->category = OptionCategory::ironing;
+    def->tooltip = L("Ironing angle. if negative, it will use the fill angle.");
+    def->sidetext = L("°");
+    def->min = -1;
+    def->mode = comExpert;
+    def->set_default_value(new ConfigOptionFloat(-1));
+
     def = this->add("ironing_type", coEnum);
     def->label = L("Ironing Type");
     def->category = OptionCategory::ironing;
diff --git a/src/libslic3r/PrintConfig.hpp b/src/libslic3r/PrintConfig.hpp
index 6ed08fec3..06ac8398e 100644
--- a/src/libslic3r/PrintConfig.hpp
+++ b/src/libslic3r/PrintConfig.hpp
@@ -778,6 +778,7 @@ public:
     ConfigOptionBool                infill_first;
     // Ironing options
     ConfigOptionBool                ironing;
+    ConfigOptionFloat               ironing_angle;
     ConfigOptionEnum<IroningType>   ironing_type;
     ConfigOptionPercent             ironing_flowrate;
     ConfigOptionFloat               ironing_spacing;
@@ -887,6 +888,7 @@ protected:
         OPT_PTR(infill_dense_algo);
         OPT_PTR(infill_first);
         OPT_PTR(ironing);
+        OPT_PTR(ironing_angle);
         OPT_PTR(ironing_type);
         OPT_PTR(ironing_flowrate);
         OPT_PTR(ironing_spacing);
diff --git a/src/slic3r/GUI/ConfigManipulation.cpp b/src/slic3r/GUI/ConfigManipulation.cpp
index 366d12137..c15efc137 100644
--- a/src/slic3r/GUI/ConfigManipulation.cpp
+++ b/src/slic3r/GUI/ConfigManipulation.cpp
@@ -453,7 +453,7 @@ void ConfigManipulation::toggle_print_fff_options(DynamicPrintConfig* config)
     toggle_field("support_material_speed", have_support_material || have_brim || have_skirt);
 
     bool has_ironing = config->opt_bool("ironing");
-    for (auto el : { "ironing_type", "ironing_flowrate", "ironing_spacing", "ironing_speed" })
+    for (auto el : { "ironing_type", "ironing_flowrate", "ironing_spacing", "ironing_angle", "ironing_speed" })
     	toggle_field(el, has_ironing);
 
     bool have_sequential_printing = config->opt_bool("complete_objects");