diff --git a/models/ShipModificationTransaction.json b/models/ShipModificationTransaction.json
new file mode 100644
index 0000000..eb1e504
--- /dev/null
+++ b/models/ShipModificationTransaction.json
@@ -0,0 +1,35 @@
+{
+  "type": "object",
+  "properties": {
+    "waypointSymbol": {
+      "type": "string",
+      "description": "The symbol of the waypoint where the transaction took place."
+    },
+    "shipSymbol": {
+      "type": "string",
+      "description": "The symbol of the ship that made the transaction."
+    },
+    "tradeSymbol": {
+      "type": "string",
+      "description": "The symbol of the trade good."
+    },
+    "totalPrice": {
+      "type": "integer",
+      "description": "The total price of the transaction.",
+      "minimum": 0
+    },
+    "timestamp": {
+      "type": "string",
+      "format": "date-time",
+      "description": "The timestamp of the transaction."
+    }
+  },
+  "required": [
+    "waypointSymbol",
+    "shipSymbol",
+    "tradeSymbol",
+    "totalPrice",
+    "timestamp"
+  ],
+  "description": "Result of a transaction for a ship modification, such as installing a mount or a module."
+}
\ No newline at end of file
diff --git a/reference/SpaceTraders.json b/reference/SpaceTraders.json
index 7ce3e30..ec1b028 100644
--- a/reference/SpaceTraders.json
+++ b/reference/SpaceTraders.json
@@ -3030,7 +3030,7 @@
                           "$ref": "../models/ShipCargo.json"
                         },
                         "transaction": {
-                          "$ref": "../models/ShipyardTransaction.json"
+                          "$ref": "../models/ShipModificationTransaction.json"
                         }
                       }
                     }
@@ -3120,7 +3120,7 @@
                           "$ref": "../models/ShipCargo.json"
                         },
                         "transaction": {
-                          "$ref": "../models/ShipyardTransaction.json"
+                          "$ref": "../models/ShipModificationTransaction.json"
                         }
                       }
                     }