diff --git a/lib/fko_common.h b/lib/fko_common.h
index 89ff6e6d..10e85ba9 100644
--- a/lib/fko_common.h
+++ b/lib/fko_common.h
@@ -95,7 +95,7 @@
   #include <endian.h>
   #if defined(BYTE_ORDER) /* POSIX proposal */
     #define BYTEORDER BYTE_ORDER
-  #elif #defined(__BYTE_ORDER) /* older systems? */
+  #elif defined(__BYTE_ORDER) /* older systems? */
     #define BYTEORDER __BYTE_ORDER
   #endif
 #elif HAVE_SYS_ENDIAN_H /* FreeBSD has a sys/endian.h */