diff --git a/gpr_sdk/private/gpr_read_image.cpp b/gpr_sdk/private/gpr_read_image.cpp
index c611b3f..4f8fe88 100644
--- a/gpr_sdk/private/gpr_read_image.cpp
+++ b/gpr_sdk/private/gpr_read_image.cpp
@@ -79,7 +81,12 @@ void gpr_read_image::ReadTile (dng_host &host,
                                    uint32 plane,
                                    uint32 planes,
                                    uint32 tileByteCount,
+// DNG 1.7 detection
+#ifdef qDNGSupportJXL
+                                   std::shared_ptr<dng_memory_block> &compressedBuffer,
+#else
                                    AutoPtr<dng_memory_block> &compressedBuffer,
+#endif
                                    AutoPtr<dng_memory_block> &uncompressedBuffer,
                                    AutoPtr<dng_memory_block> &subTileBlockBuffer,
 								   bool usingMultipleThreads)