diff --git a/receiver/JFJochReceiverFPGA.cpp b/receiver/JFJochReceiverFPGA.cpp
index 447521bc..470a9096 100644
--- a/receiver/JFJochReceiverFPGA.cpp
+++ b/receiver/JFJochReceiverFPGA.cpp
@@ -282,7 +282,7 @@ void JFJochReceiverFPGA::FrameTransformationThread(uint32_t threadid) {
     std::unique_ptr<MXAnalysisAfterFPGA> analyzer;
 
     try {
-        analyzer = std::make_unique<MXAnalysisAfterFPGA>(experiment, *az_int_mapping indexer);
+        analyzer = std::make_unique<MXAnalysisAfterFPGA>(experiment, *az_int_mapping, indexer);
     } catch (const JFJochException &e) {
         frame_transformation_ready.count_down();
         logger.Error("Thread setup error {}", e.what());