diff --git a/Source/Core/DiscIO/VolumeFileBlobReader.cpp b/Source/Core/DiscIO/VolumeFileBlobReader.cpp
index 7cbc06e589..92eb9b4ae2 100644
--- a/Source/Core/DiscIO/VolumeFileBlobReader.cpp
+++ b/Source/Core/DiscIO/VolumeFileBlobReader.cpp
@@ -33,6 +33,11 @@ VolumeFileBlobReader::VolumeFileBlobReader(const Volume& volume, const Partition
 {
 }
 
+// This is defined here instead of the header so that the definition of FileInfo is visible when
+// m_file_info is destroyed, preventing a compile error caused by calling unique_ptr's destructor
+// with an incomplete type.
+VolumeFileBlobReader::~VolumeFileBlobReader() = default;
+
 std::unique_ptr<BlobReader> VolumeFileBlobReader::CopyReader() const
 {
   ASSERT_MSG(DISCIO, false, "Unimplemented");
diff --git a/Source/Core/DiscIO/VolumeFileBlobReader.h b/Source/Core/DiscIO/VolumeFileBlobReader.h
index 58d349a0d4..49fe4cd200 100644
--- a/Source/Core/DiscIO/VolumeFileBlobReader.h
+++ b/Source/Core/DiscIO/VolumeFileBlobReader.h
@@ -20,6 +20,7 @@ class VolumeFileBlobReader final : public BlobReader
 public:
   static std::unique_ptr<VolumeFileBlobReader>
   Create(const Volume& volume, const Partition& partition, std::string_view file_path);
+  ~VolumeFileBlobReader();
 
   BlobType GetBlobType() const override { return BlobType::PLAIN; }
   std::unique_ptr<BlobReader> CopyReader() const override;