diff --git a/libraries/liblutil/entropy.c b/libraries/liblutil/entropy.c
index 4a15a789d4..c372efab10 100644
--- a/libraries/liblutil/entropy.c
+++ b/libraries/liblutil/entropy.c
@@ -20,7 +20,6 @@ int lutil_entropy( char *buf, int nbytes )
 	if( nbytes < 0 ) return -1;
 	if( nbytes == 0 ) return 0;
 
-#undef URANDOM_DEVICE
 #ifdef URANDOM_DEVICE
 	/* Linux and *BSD offer a urandom device */
 	{