diff --git a/include/podio/SIOBlockUserData.h b/include/podio/SIOBlockUserData.h
index 4d3110fba..5921ef018 100644
--- a/include/podio/SIOBlockUserData.h
+++ b/include/podio/SIOBlockUserData.h
@@ -47,12 +47,11 @@ class SIOBlockUserData : public podio::SIOBlock {
             .createBuffers(podio::userDataCollTypeName<BasicType>(), sio::version::major_version(version), false)
             .value();
 
-    auto* dataVec = new std::vector<BasicType>();
+    auto* dataVec = m_buffers.dataAsVector<BasicType>();
     unsigned size(0);
     device.data(size);
     dataVec->resize(size);
     podio::handlePODDataSIO(device, &(*dataVec)[0], size);
-    m_buffers.data = dataVec;
   }
 
   void write(sio::write_device& device) override {
diff --git a/include/podio/SIOFrameData.h b/include/podio/SIOFrameData.h
index 95b09d927..dd2dddb20 100644
--- a/include/podio/SIOFrameData.h
+++ b/include/podio/SIOFrameData.h
@@ -23,7 +23,7 @@ class SIOFrameData {
 
 public:
   SIOFrameData() = delete;
-  ~SIOFrameData() = default;
+  ~SIOFrameData();
 
   SIOFrameData(const SIOFrameData&) = delete;
   SIOFrameData& operator=(const SIOFrameData&) = delete;
diff --git a/src/SIOFrameData.cc b/src/SIOFrameData.cc
index 806639672..5615463a0 100644
--- a/src/SIOFrameData.cc
+++ b/src/SIOFrameData.cc
@@ -100,4 +100,13 @@ void SIOFrameData::readIdTable() {
   m_subsetCollectionBits = idTableBlock->getSubsetCollectionBits();
 }
 
+SIOFrameData::~SIOFrameData() {
+  for (size_t i = 1; i < m_blocks.size(); ++i) {
+    if (m_availableBlocks[i]) {
+      auto buffers = dynamic_cast<SIOBlock*>(m_blocks[i].get())->getBuffers();
+      buffers.deleteBuffers(buffers);
+    }
+  }
+}
+
 } // namespace podio
diff --git a/tests/CTestCustom.cmake b/tests/CTestCustom.cmake
index 9b8a58ced..f87ae17ab 100644
--- a/tests/CTestCustom.cmake
+++ b/tests/CTestCustom.cmake
@@ -89,8 +89,6 @@ if ((NOT "@FORCE_RUN_ALL_TESTS@" STREQUAL "ON") AND (NOT "@USE_SANITIZER@" STREQ
       read_and_write_sio
       write_timed_sio
       read_timed_sio
-      read_frame_sio
-      read_interface_sio
       read_frame_legacy_sio
       read_and_write_frame_sio
       )