diff --git a/include/machine/endian.h b/include/machine/endian.h
index 7e59bcd..80b3f9c 100644
--- a/include/machine/endian.h
+++ b/include/machine/endian.h
@@ -19,10 +19,7 @@
 #elif defined(__linux__)
 #include <endian.h>
 
-#elif defined(__sun)
-#include <arpa/nameser_compat.h>
-
-#elif defined(_AIX)
+#elif defined(__sun) || defined(_AIX) || defined(__hpux)
 #include <sys/types.h>
 #include <arpa/nameser_compat.h>
 
@@ -30,9 +27,6 @@
 #include <standards.h>
 #include <sys/endian.h>
 
-#elif defined(__hpux)
-#include <arpa/nameser_compat.h>
-
 #else
 #include_next <machine/endian.h>