diff --git a/include/libcamera/internal/ipa_data_serializer.h b/include/libcamera/internal/ipa_data_serializer.h
index b4614f21d..b1fefba58 100644
--- a/include/libcamera/internal/ipa_data_serializer.h
+++ b/include/libcamera/internal/ipa_data_serializer.h
@@ -309,7 +309,6 @@ public:
 	serialize(const Flags<E> &data, [[maybe_unused]] ControlSerializer *cs = nullptr)
 	{
 		std::vector<uint8_t> dataVec;
-		dataVec.reserve(sizeof(Flags<E>));
 		appendPOD<uint32_t>(dataVec, static_cast<typename Flags<E>::Type>(data));
 
 		return { dataVec, {} };
diff --git a/src/libcamera/ipa_data_serializer.cpp b/src/libcamera/ipa_data_serializer.cpp
index 2189a2466..0537f785b 100644
--- a/src/libcamera/ipa_data_serializer.cpp
+++ b/src/libcamera/ipa_data_serializer.cpp
@@ -196,7 +196,6 @@ IPADataSerializer<type>::serialize(const type &data,			\
 				  [[maybe_unused]] ControlSerializer *cs) \
 {									\
 	std::vector<uint8_t> dataVec;					\
-	dataVec.reserve(sizeof(type));					\
 	appendPOD<type>(dataVec, data);					\
 									\
 	return { dataVec, {} };						\