diff --git a/data/presets.yaml b/data/presets.yaml
index 9fef46c64..1a4e1a4d5 100644
--- a/data/presets.yaml
+++ b/data/presets.yaml
@@ -1469,7 +1469,7 @@ en:
           # transformer=auto
           auto: Autotransformer
           # transformer=auxiliary
-          auxiliary: Auxiliarty
+          auxiliary: Auxiliary
           # transformer=converter
           converter: Converter
           # transformer=distribution
diff --git a/data/presets/fields.json b/data/presets/fields.json
index 8fab93ba8..53191bea8 100644
--- a/data/presets/fields.json
+++ b/data/presets/fields.json
@@ -2005,7 +2005,7 @@
                     "traction": "Traction",
                     "auto": "Autotransformer",
                     "phase_angle_regulator": "Phase Angle Regulator",
-                    "auxiliary": "Auxiliarty",
+                    "auxiliary": "Auxiliary",
                     "yes": "Unknown"
                 }
             }
diff --git a/data/presets/fields/transformer.json b/data/presets/fields/transformer.json
index b4f877ffc..e811eb2a2 100644
--- a/data/presets/fields/transformer.json
+++ b/data/presets/fields/transformer.json
@@ -10,7 +10,7 @@
             "traction": "Traction",
             "auto": "Autotransformer",
             "phase_angle_regulator": "Phase Angle Regulator",
-            "auxiliary": "Auxiliarty",
+            "auxiliary": "Auxiliary",
             "yes": "Unknown"
         }
     }
diff --git a/dist/locales/en.json b/dist/locales/en.json
index 865cf5d76..40e4cb04b 100644
--- a/dist/locales/en.json
+++ b/dist/locales/en.json
@@ -2325,7 +2325,7 @@
                         "traction": "Traction",
                         "auto": "Autotransformer",
                         "phase_angle_regulator": "Phase Angle Regulator",
-                        "auxiliary": "Auxiliarty",
+                        "auxiliary": "Auxiliary",
                         "yes": "Unknown"
                     }
                 },