diff --git a/defines.hpp b/defines.hpp
index 35b7223f8f..7eded22a62 100644
--- a/defines.hpp
+++ b/defines.hpp
@@ -26,10 +26,6 @@
 #define ROUTING_FTSEG_FILE_TAG  "ftseg"
 #define ROUTING_NODEIND_TO_FTSEGIND_FILE_TAG  "node2ftseg"
 
-#define FTSEG_MAPPING_BACKWARD_INDEX_NODES_EXT ".bftsegnodes"
-#define FTSEG_MAPPING_BACKWARD_INDEX_BITS_EXT ".bftsegbits"
-#define FEATURES_OFFSETS_TABLE_FILE_EXT ".offsets"
-
 // Secret word to unlock experimental features in production builds.
 #define ROUTING_SECRET_UNLOCKING_WORD "?pedestrian"
 #define ROUTING_SECRET_LOCKING_WORD "?vehicle"