diff --git a/ci/test/00_setup_env_i686_no_ipc.sh b/ci/test/00_setup_env_i686_no_ipc.sh
index 3d19232f2e5..90e9d7c95df 100755
--- a/ci/test/00_setup_env_i686_no_ipc.sh
+++ b/ci/test/00_setup_env_i686_no_ipc.sh
@@ -15,7 +15,7 @@ export PACKAGES="llvm clang g++-multilib"
 export DEP_OPTS="DEBUG=1 NO_IPC=1"
 export GOAL="install"
 export CI_LIMIT_STACK_SIZE=1
-export TEST_RUNNER_EXTRA="--v2transport --usecli"
+export TEST_RUNNER_EXTRA="--v2transport --usecli --extended"
 export BITCOIN_CONFIG="\
  --preset=dev-mode \
  -DENABLE_IPC=OFF \
diff --git a/test/functional/feature_index_prune.py b/test/functional/feature_index_prune.py
index 49520be0586..0654e04f586 100755
--- a/test/functional/feature_index_prune.py
+++ b/test/functional/feature_index_prune.py
@@ -18,11 +18,11 @@ from typing import List, Any
 
 def send_batch_request(node: TestNode, method: str, params: List[Any]) -> List[Any]:
     """Send batch request and parse all results"""
-    data = [{"method": method, "params": p} for p in params]
+    data = [getattr(node, method).get_request(*p) for p in params]
     response = node.batch(data)
     result = []
     for item in response:
-        assert item["error"] is None, item["error"]
+        assert "error" not in item, item["error"]
         result.append(item["result"])
 
     return result