diff --git a/furc/include/furc/back/ir.hpp b/furc/include/furc/middle/ir.hpp
similarity index 99%
rename from furc/include/furc/back/ir.hpp
rename to furc/include/furc/middle/ir.hpp
index 7ca4ee9..255462a 100644
--- a/furc/include/furc/back/ir.hpp
+++ b/furc/include/furc/middle/ir.hpp
@@ -1,5 +1,5 @@
-#ifndef FURC_BACK_IR_HPP
-#define FURC_BACK_IR_HPP
+#ifndef FURC_MIDDLE_IR_HPP
+#define FURC_MIDDLE_IR_HPP
 
 #include "furc/front/ast.hpp"
 #include "furlang/arena.hpp"
@@ -403,4 +403,4 @@ private:
 
 } // namespace furc
 
-#endif // FURC_BACK_IR_HPP
+#endif // FURC_MIDDLE_IR_HPP
diff --git a/furc/src/main.cpp b/furc/src/main.cpp
index 8249a4e..8ca380e 100644
--- a/furc/src/main.cpp
+++ b/furc/src/main.cpp
@@ -1,6 +1,6 @@
-#include "furc/back/ir.hpp"
 #include "furc/front/lexer.hpp"
 #include "furc/front/parser.hpp"
+#include "furc/middle/ir.hpp"
 #include "furlang/arena.hpp"
 
 int main(void) {
diff --git a/furc/src/back/ir.cpp b/furc/src/middle/ir.cpp
similarity index 99%
rename from furc/src/back/ir.cpp
rename to furc/src/middle/ir.cpp
index 42a5365..ffa8978 100644
--- a/furc/src/back/ir.cpp
+++ b/furc/src/middle/ir.cpp
@@ -1,4 +1,4 @@
-#include "furc/back/ir.hpp"
+#include "furc/middle/ir.hpp"
 
 #include "furc/front/ast.hpp"