diff --git a/configure b/configure
index ebe3d8c..a336b73 100755
--- a/configure
+++ b/configure
@@ -18943,7 +18943,6 @@ do :
   ac_fn_c_check_func "$LINENO" "sendfile" "ac_cv_func_sendfile"
 if test "x$ac_cv_func_sendfile" = xyes; then :
   cat >>confdefs.h <<_ACEOF
-#define HAVE_SENDFILE 1
 _ACEOF
 
 fi
