diff --git a/lldb/source/Plugins/InstrumentationRuntime/TSan/InstrumentationRuntimeTSan.cpp b/lldb/source/Plugins/InstrumentationRuntime/TSan/InstrumentationRuntimeTSan.cpp
--- a/lldb/source/Plugins/InstrumentationRuntime/TSan/InstrumentationRuntimeTSan.cpp
+++ b/lldb/source/Plugins/InstrumentationRuntime/TSan/InstrumentationRuntimeTSan.cpp
@@ -261,7 +261,7 @@
 static void
 GetRenumberedThreadIds(ProcessSP process_sp, ValueObjectSP data,
                        std::map<uint64_t, user_id_t> &thread_id_map) {
-  ConvertToStructuredArray(
+  std::unique_ptr<StructuredData::Array> cleanup(ConvertToStructuredArray(
       data, ".threads", ".thread_count",
       [process_sp, &thread_id_map](ValueObjectSP o,
                                    StructuredData::Dictionary *dict) {
@@ -285,7 +285,7 @@
         }
 
         thread_id_map[thread_id] = lldb_user_id;
-      });
+      }));
 }
 
 static user_id_t Renumber(uint64_t id,