1 files changed, 1 insertions, 1 deletions

diff --git a/src/s/usg5-4.h b/src/s/usg5-4.h
index 6a28e8e9c54..097bded32fe 100644
--- a/src/s/usg5-4.h
+++ b/src/s/usg5-4.h
@@ -193,7 +193,7 @@ Boston, MA 02111-1307, USA.  */
 #define bcopy(src,dst,n)        memmove (dst,src,n)
 #define bzero(s,n)              memset (s,0,n)
 #endif
-#ifdef HAVE_BCMP
+#ifndef HAVE_BCMP
 #define bcmp(src,dst,n)         memcmp (src,dst,n)
 #endif