diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index 539add1bce..8fdcede569 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -3051,7 +3051,7 @@ void PrintConfigDef::init_fff_params()
     def->label    = L("Lightning overhang angle");
     def->category = L("Strength");
     def->tooltip  = L("Maximum overhang angle for Lightning infill support propagation.");
-    def->sidetext = u8"°";
+    def->sidetext = u8"°";	// degrees, don't need translation
     def->min      = 5;
     def->max      = 85;
     def->mode     = comExpert;
@@ -3060,8 +3060,9 @@ void PrintConfigDef::init_fff_params()
     def           = this->add("lightning_prune_angle", coFloat);
     def->label    = L("Prune angle");
     def->category = L("Strength");
-    def->tooltip  = L("Controls how aggressively short or unsupported Lightning branches are pruned. This angle is converted internally to a per-layer distance.");
-    def->sidetext = u8"°";
+    def->tooltip  = L("Controls how aggressively short or unsupported Lightning branches are pruned.\n"
+                      "This angle is converted internally to a per-layer distance.");
+    def->sidetext = u8"°";	// degrees, don't need translation
     def->min      = 5;
     def->max      = 85;
     def->mode     = comExpert;
@@ -3071,7 +3072,7 @@ void PrintConfigDef::init_fff_params()
     def->label    = L("Straightening angle");
     def->category = L("Strength");
     def->tooltip  = L("Maximum straightening angle used to simplify Lightning branches.");
-    def->sidetext = u8"°";
+    def->sidetext = u8"°";	// degrees, don't need translation
     def->min      = 5;
     def->max      = 85;
     def->mode     = comExpert;
diff --git a/src/slic3r/GUI/Tab.cpp b/src/slic3r/GUI/Tab.cpp
index 0e8a4eb987..071a4b24eb 100644
--- a/src/slic3r/GUI/Tab.cpp
+++ b/src/slic3r/GUI/Tab.cpp
@@ -2482,9 +2482,9 @@ void TabPrint::build()
         optgroup->append_single_option_line("lateral_lattice_angle_1", "strength_settings_patterns#lateral-lattice");
         optgroup->append_single_option_line("lateral_lattice_angle_2", "strength_settings_patterns#lateral-lattice");
         optgroup->append_single_option_line("infill_overhang_angle", "strength_settings_patterns#lateral-honeycomb");
-        optgroup->append_single_option_line("lightning_overhang_angle", "strength_settings_patterns#lightning-infill");
-        optgroup->append_single_option_line("lightning_prune_angle", "strength_settings_patterns#lightning-infill");
-        optgroup->append_single_option_line("lightning_straightening_angle", "strength_settings_patterns#lightning-infill");
+        optgroup->append_single_option_line("lightning_overhang_angle", "strength_settings_patterns#lightning");
+        optgroup->append_single_option_line("lightning_prune_angle", "strength_settings_patterns#lightning");
+        optgroup->append_single_option_line("lightning_straightening_angle", "strength_settings_patterns#lightning");
         optgroup->append_single_option_line("infill_anchor_max", "strength_settings_infill#anchor");
         optgroup->append_single_option_line("infill_anchor", "strength_settings_infill#anchor");
         optgroup->append_single_option_line("internal_solid_infill_pattern", "strength_settings_infill#internal-solid-infill");