diff --git a/agglayer/testdata/type_conversion_errors/l1_info_root_incorrect_error.json b/agglayer/testdata/type_conversion_errors/l1_info_root_incorrect_error.json
index daebff15..dc74e325 100644
--- a/agglayer/testdata/type_conversion_errors/l1_info_root_incorrect_error.json
+++ b/agglayer/testdata/type_conversion_errors/l1_info_root_incorrect_error.json
@@ -2,5 +2,10 @@
   {
     "test_name": "L1InfoRootIncorrect",
     "certificate_header": "{\"network_id\":1,\"height\":6,\"epoch_number\":null,\"certificate_index\":null,\"certificate_id\":\"0xa80cd4abb016bbb3c3058f923a88be1ad49d68277366c55554d6f13d62428a1f\",\"new_local_exit_root\":\"0x566244fbf813b6926f6895142979f61ed6706184909cb8c819cd0216202a8aa9\",\"metadata\":\"0x000000000000000000000000000000000000000000000000000000000000001f\",\"status\":{\"InError\":{\"error\":{\"TypeConversionError\":{\"L1InfoRootIncorrect\":{\"leaf_count\":11,\"declared\":\"0x566244fbf813b6926f6895142979f61ed6706184909cb8c819cd0216202a8aa9\",\"retrieved\":\"0xa80cd4abb016bbb3c3058f923a88be1ad49d68277366c55554d6f13d62428a1f\"}}}}}}"
+  },
+  {
+    "test_name": "L1InfoRootIncorrect - unmarshal error",
+    "expected_error": "value of key leaf_count is not of type uint32",
+    "certificate_header": "{\"network_id\":1,\"height\":6,\"epoch_number\":null,\"certificate_index\":null,\"certificate_id\":\"0xa80cd4abb016bbb3c3058f923a88be1ad49d68277366c55554d6f13d62428a1f\",\"new_local_exit_root\":\"0x566244fbf813b6926f6895142979f61ed6706184909cb8c819cd0216202a8aa9\",\"metadata\":\"0x000000000000000000000000000000000000000000000000000000000000001f\",\"status\":{\"InError\":{\"error\":{\"TypeConversionError\":{\"L1InfoRootIncorrect\":{\"leaf_count\":\"invalid\",\"declared\":\"0x566244fbf813b6926f6895142979f61ed6706184909cb8c819cd0216202a8aa9\",\"retrieved\":\"0xa80cd4abb016bbb3c3058f923a88be1ad49d68277366c55554d6f13d62428a1f\"}}}}}}"
   }
 ]
\ No newline at end of file