diff --git a/include/lunasvg.h b/include/lunasvg.h
index 8ba024b..43308c8 100644
--- a/include/lunasvg.h
+++ b/include/lunasvg.h
@@ -204,6 +204,7 @@ class LUNASVG_API Document {
      */
     Bitmap renderToBitmap(std::uint32_t width = 0, std::uint32_t height = 0, std::uint32_t backgroundColor = 0x00000000) const;
 
+    Document(Document&&);
     ~Document();
 
 private:
diff --git a/source/lunasvg.cpp b/source/lunasvg.cpp
index 95186f0..c11d0e5 100644
--- a/source/lunasvg.cpp
+++ b/source/lunasvg.cpp
@@ -364,8 +364,8 @@ Bitmap Document::renderToBitmap(std::uint32_t width, std::uint32_t height, std::
     return bitmap;
 }
 
-Document::Document() = default;
-
+Document::Document(Document&&) = default;
 Document::~Document() = default;
+Document::Document() = default;
 
 } // namespace lunasvg