diff --git a/receiver/JFJochReceiverFPGA.cpp b/receiver/JFJochReceiverFPGA.cpp
index 68e632c2..dcd446c2 100644
--- a/receiver/JFJochReceiverFPGA.cpp
+++ b/receiver/JFJochReceiverFPGA.cpp
@@ -154,7 +154,7 @@ void JFJochReceiverFPGA::SendPedestal(const std::string &prefix, const std::vect
     else
         channel = fmt::format("{:s}_g{:d}", prefix, gain);
 
-    CompressedImage image(v.data(), v.size(), xpixel, ypixel, CompressedImageMode::Uint32,
+    CompressedImage image(v.data(), v.size(), xpixel, ypixel, CompressedImageMode::Uint16,
                           CompressionAlgorithm::BSHUF_LZ4, channel);
 
     image_pusher.SendCalibration(image);