diff --git a/apps/frontend/src/data/decoders/signature.gleam b/apps/frontend/src/data/decoders/signature.gleam
index fae842d..e3ff739 100644
--- a/apps/frontend/src/data/decoders/signature.gleam
+++ b/apps/frontend/src/data/decoders/signature.gleam
@@ -48,7 +48,7 @@ pub type Signature {
 }
 
 pub fn decode_signature(dyn) {
-  use res <- result.try(dynamic.field("type", dynamic.string)(dyn))
+  use res <- result.try(dynamic.field("nature", dynamic.string)(dyn))
   case res {
     "constant" -> decode_constant(dyn)
     "function" -> decode_function(dyn)