diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index c55c472f38..ba77f529ef 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -2629,7 +2629,7 @@ void PrintConfigDef::init_fff_params()
     def->tooltip = L("Style and shape of the support. For normal support, projecting the supports into a regular grid "
                      "will create more stable supports (default), while snug support towers will save material and reduce "
                      "object scarring.\n"
-                     "For tree support, tight style will merge branches more aggressively and save "
+                     "For tree support, slim style will merge branches more aggressively and save "
                      "a lot of material (default), while hybrid style will create similar structure to normal support "
                      "under large flat overhangs.");
     def->enum_keys_map = &ConfigOptionEnum<SupportMaterialStyle>::get_enum_values();
@@ -2731,7 +2731,7 @@ void PrintConfigDef::init_fff_params()
 
     def = this->add("bed_temperature_difference", coInts);
     def->label = L("Bed temperature difference");
-    def->tooltip = L("Do not recommand bed temperature of other layer to be lower than initial layer for more than this threshold. "
+    def->tooltip = L("Do not recommend bed temperature of other layer to be lower than initial layer for more than this threshold. "
                      "Too low bed temperature of other layer may cause the model broken free from build plate");
     def->sidetext = L("°C");
     def->min = 0;
diff --git a/src/slic3r/GUI/Tab.cpp b/src/slic3r/GUI/Tab.cpp
index 40a46b621a..16cb034e2e 100644
--- a/src/slic3r/GUI/Tab.cpp
+++ b/src/slic3r/GUI/Tab.cpp
@@ -1421,7 +1421,7 @@ void Tab::on_value_change(const std::string& opt_key, const boost::any& value)
         if (is_tree_slim(m_config->opt_enum<SupportType>("support_type"), m_config->opt_enum<SupportMaterialStyle>("support_style")) &&
             !(m_config->opt_float("support_top_z_distance") == 0 && m_config->opt_int("support_interface_top_layers") == 0 && m_config->opt_int("tree_support_wall_count") == 2)) {
             wxString msg_text = _L("We have added an experimental style \"Tree Slim\" that features smaller support volume but weaker strength.\n"
-                                    "We recommand using it with: 0 interface layers, 0 top distance, 2 walls.");
+                                    "We recommend using it with: 0 interface layers, 0 top distance, 2 walls.");
             msg_text += "\n\n" + _L("Change these settings automatically? \n"
                                     "Yes - Change these settings automatically\n"
                                     "No  - Do not change these settings for me");
@@ -1437,7 +1437,7 @@ void Tab::on_value_change(const std::string& opt_key, const boost::any& value)
         } else if ((m_config->opt_enum<SupportType>("support_type")==stTreeAuto && (m_config->opt_enum<SupportMaterialStyle>("support_style")==smsTreeStrong || m_config->opt_enum<SupportMaterialStyle>("support_style") == smsTreeHybrid)) &&
                    !((m_config->opt_float("support_top_z_distance") >=0.1 || is_support_filament(m_config->opt_int("support_interface_filament") - 1))
                        && m_config->opt_int("support_interface_top_layers") >1) ) {
-            wxString msg_text = _L("For \"Tree Strong\" and \"Tree Hybrid\" styles, we recommand the following settings: at least 2 interface layers, at least 0.1 top z distance or using support materials on interface.");
+            wxString msg_text = _L("For \"Tree Strong\" and \"Tree Hybrid\" styles, we recommend the following settings: at least 2 interface layers, at least 0.1mm top z distance or using support materials on interface.");
             msg_text += "\n\n" + _L("Change these settings automatically? \n"
                                     "Yes - Change these settings automatically\n"
                                     "No  - Do not change these settings for me");
@@ -1458,8 +1458,8 @@ void Tab::on_value_change(const std::string& opt_key, const boost::any& value)
         int interface_filament_id = m_config->opt_int("support_interface_filament") - 1; // the displayed id is based from 1, while internal id is based from 0
         if (is_support_filament(interface_filament_id) && !(m_config->opt_float("support_top_z_distance") == 0 && m_config->opt_float("support_interface_spacing") == 0 &&
                                                             m_config->opt_enum<SupportMaterialInterfacePattern>("support_interface_pattern") == SupportMaterialInterfacePattern::smipConcentric)) {
-            wxString msg_text = _L("When using support material for the support interface, We recommand the following settings:\n"
-                                   "0 top distance, 0 interface spacing, concentric pattern.");
+            wxString msg_text = _L("When using support material for the support interface, We recommend the following settings:\n"
+                                   "0 top z distance, 0 interface spacing, concentric pattern.");
             msg_text += "\n\n" + _L("Change these settings automatically? \n"
                                     "Yes - Change these settings automatically\n"
                                     "No  - Do not change these settings for me");