diff --git a/include/xo/unit/bpu2_iostream.hpp b/include/xo/unit/bpu_iostream.hpp
similarity index 100%
rename from include/xo/unit/bpu2_iostream.hpp
rename to include/xo/unit/bpu_iostream.hpp
diff --git a/utest/unit.test.cpp b/utest/unit.test.cpp
index fc6e1aae..e63816ca 100644
--- a/utest/unit.test.cpp
+++ b/utest/unit.test.cpp
@@ -8,7 +8,7 @@
 #include "xo/unit/natural_unit_iostream.hpp"
 #include "xo/unit/bpu_store.hpp"
 #include "xo/unit/bpu.hpp"
-#include "xo/unit/bpu2_iostream.hpp"
+#include "xo/unit/bpu_iostream.hpp"
 #include "xo/unit/basis_unit.hpp"
 #include "xo/unit/native_unit.hpp"
 #include "xo/reflect/Reflect.hpp"