diff --git a/src/lib/format/tests/TestDecoding.cpp b/src/lib/format/tests/TestDecoding.cpp
index 20a8545e2c8314..3ac9b94511d726 100644
--- a/src/lib/format/tests/TestDecoding.cpp
+++ b/src/lib/format/tests/TestDecoding.cpp
@@ -35,7 +35,7 @@ using namespace chip::TLVMeta;
 using namespace chip::TestData;
 
 const Entry<ItemInfo> _empty_item[0]                 = {};
-const std::array<const Node<ItemInfo>, 1> empty_meta = { { 0, _empty_item } };
+const std::array<const Node<ItemInfo>, 1> empty_meta = { { { 0, _empty_item } } };
 
 const Entry<ItemInfo> _FakeProtocolData[] = {
     { { AttributeTag(5), "proto5", ItemType::kDefault }, kInvalidNodeIndex },