diff --git a/src/sfizz/FilePool.h b/src/sfizz/FilePool.h
index f8423f54..4007d33a 100644
--- a/src/sfizz/FilePool.h
+++ b/src/sfizz/FilePool.h
@@ -65,6 +65,8 @@ struct FilePromise
     Oversampling oversamplingFactor { config::defaultOversamplingFactor };
     std::atomic_size_t availableFrames { 0 };
     std::atomic<bool> dataReady { false };
+
+    LEAK_DETECTOR(FilePromise);
 };
 
 using FilePromisePtr = std::shared_ptr<FilePromise>;
diff --git a/src/sfizz/Oversampler.h b/src/sfizz/Oversampler.h
index d464d63e..d05cf756 100644
--- a/src/sfizz/Oversampler.h
+++ b/src/sfizz/Oversampler.h
@@ -64,6 +64,8 @@ public:
 private:
     Oversampling factor;
     size_t chunkSize;
+
+    LEAK_DETECTOR(Oversampler);
 };
 
 }