diff --git a/src/models/survey.gleam b/src/models/survey.gleam
index 6306376..6a8387d 100644
--- a/src/models/survey.gleam
+++ b/src/models/survey.gleam
@@ -29,12 +29,12 @@ pub fn decoder() -> Decoder(Survey) {
   decode.success(Survey(signature:, symbol:, deposits:, expiration:, size:))
 }
 
-pub fn encode(data: Survey) -> Json {
+pub fn encode(survey: Survey) -> Json {
   json.object([
-    #("signature", survey_signature.encode(data.signature)),
-    #("symbol", waypoint_symbol.encode(data.symbol)),
-    #("deposits", json.array(data.deposits, survey_deposit.encode)),
-    #("expiration", json.string(birl.to_iso8601(data.expiration))),
-    #("size", survey_size.encode(data.size)),
+    #("signature", survey_signature.encode(survey.signature)),
+    #("symbol", waypoint_symbol.encode(survey.symbol)),
+    #("deposits", json.array(survey.deposits, survey_deposit.encode)),
+    #("expiration", json.string(birl.to_iso8601(survey.expiration))),
+    #("size", survey_size.encode(survey.size)),
   ])
 }