diff --git a/crates/aiken-lang/src/gen_uplc/builder.rs b/crates/aiken-lang/src/gen_uplc/builder.rs
index e0246a15..519ce5fc 100644
--- a/crates/aiken-lang/src/gen_uplc/builder.rs
+++ b/crates/aiken-lang/src/gen_uplc/builder.rs
@@ -1192,6 +1192,8 @@ pub fn unknown_data_to_type_debug(
             .apply(term)
     } else if field_type.is_ml_result() {
         panic!("ML Result not supported")
+    } else if field_type.is_data() {
+        term
     } else {
         Term::var("__val")
             .delayed_choose_data(
diff --git a/examples/acceptance_tests/099/lib/other.ak b/examples/acceptance_tests/099/lib/other.ak
new file mode 100644
index 00000000..21cf1094
--- /dev/null
+++ b/examples/acceptance_tests/099/lib/other.ak
@@ -0,0 +1,32 @@
+pub type PublicKeyHash =
+  ByteArray
+
+pub type ByteArrayDataPair {
+  key: ByteArray,
+  value: Data,
+}
+
+pub type ReferenceDatum {
+  data: List<ByteArrayDataPair>,
+  controller: PublicKeyHash,
+}
+
+pub fn find_data(datas: List<ByteArrayDataPair>, key: ByteArray) -> Data {
+  when datas is {
+    [] -> fail @"Data Structure Not Found"
+    [d, ..ds] ->
+      if d.key == key {
+        d.value
+      } else {
+        find_data(ds, key)
+      }
+  }
+}
+
+test thing() {
+  let stuff: Data =
+    ReferenceDatum([ByteArrayDataPair("key", "value")], "controller")
+
+  expect other: ReferenceDatum = stuff
+  other == other
+}