diff --git a/applications/reconstruct/src/registration.cpp b/applications/reconstruct/src/registration.cpp
index 23ae7e746aaa0b5a1d6c76920a79d366c0a0a310..dab5235445a61460c3f65fd35f75ab694cdb8128 100644
--- a/applications/reconstruct/src/registration.cpp
+++ b/applications/reconstruct/src/registration.cpp
@@ -1,5 +1,5 @@
 #include <ftl/registration.hpp>
-
+#include <fstream>
 #define LOGURU_WITH_STREAMS 1
 #include <loguru.hpp>