diff --git a/src/utils/bitstring/bitstring_c.c b/src/utils/bitstring/bitstring_c.c
index 1fec998a..c1b25ed3 100644
--- a/src/utils/bitstring/bitstring_c.c
+++ b/src/utils/bitstring/bitstring_c.c
@@ -41,7 +41,12 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
-#include <byteswap.h>
+#if defined(HAVE_BYTESWAP_H)
+#  include <byteswap.h>
+#else
+#  include "byteswap.h"
+#endif
+
 #include <string.h>
 
 #include <caml/mlvalues.h>
@@ -202,4 +207,4 @@ extract_fastpath_with_copy(64, be, signed  , int64_t )
 extract_fastpath_with_copy(64, le, signed  , int64_t )
 extract_fastpath_with_copy(64, ne, signed  , int64_t )
 
-// vim: ts=2:sts=2:sw=2:et
\ No newline at end of file
+// vim: ts=2:sts=2:sw=2:et