diff --git a/Makefile b/Makefile
index 268aede566..3bca8d42cc 100644
--- a/Makefile
+++ b/Makefile
@@ -412,6 +412,7 @@ LIB_H += builtin.h
 LIB_H += cache.h
 LIB_H += cache-tree.h
 LIB_H += commit.h
+LIB_H += compat/bswap.h
 LIB_H += compat/cygwin.h
 LIB_H += compat/mingw.h
 LIB_H += csum-file.h