diff --git a/include/savvy/portable_endian.hpp b/include/savvy/portable_endian.hpp
index 359f500..9de24bd 100644
--- a/include/savvy/portable_endian.hpp
+++ b/include/savvy/portable_endian.hpp
@@ -13,7 +13,7 @@
 
 #endif
 
-#if defined(__linux__) || defined(__CYGWIN__)
+#if defined(__linux__) || defined(__CYGWIN__) || defined(__GNU__)
 
 # include <endian.h>