diff --git a/vanity.hpp b/vanity.hpp
index 525e325..a5cedda 100644
--- a/vanity.hpp
+++ b/vanity.hpp
@@ -10,7 +10,6 @@
 #include <unistd.h>
 #include <vector>
 #include <mutex>
-typedef unsigned int __attribute__((__mode__(SI))) ui4b_t; //32 / 8 = 4 byte
 
 static std::mutex thread_mutex;
 static i2p::data::SigningKeyType type;