diff --git a/std-udp-recv/include/eiger.hpp b/std-udp-recv/include/eiger.hpp
index 6eee1ea..d8a7b33 100644
--- a/std-udp-recv/include/eiger.hpp
+++ b/std-udp-recv/include/eiger.hpp
@@ -3,6 +3,10 @@
 
 #include <cstdint>
 
+#define IS_BOTTOM(n) ((n%2 != 0) ? -1 : 1)
+
+const std::string DETECTOR_TYPE = "eiger";
+
 #define N_MODULES 1
 #define BYTES_PER_PACKET 4144
 #define DATA_BYTES_PER_PACKET 4096
diff --git a/std-udp-recv/include/jungfrau.hpp b/std-udp-recv/include/jungfrau.hpp
index 455f21e..b7ad43d 100644
--- a/std-udp-recv/include/jungfrau.hpp
+++ b/std-udp-recv/include/jungfrau.hpp
@@ -3,6 +3,8 @@
 
 #include <cstdint>
 
+const std::string DETECTOR_TYPE = "jungfrau";
+
 #define N_MODULES 32
 #define BYTES_PER_PACKET 8240
 #define DATA_BYTES_PER_PACKET 8192