--- a/configure.ac
+++ b/configure.ac
@@ -172,7 +172,7 @@ if test "x$want_threads" = "xyes"; then
 fi
 
 # Add back -Werror if it was there before
-CFLAGS="$CFLAGS""$CFLAGS_werror"
+CFLAGS="$CFLAGS"
 
 # Optional threads support
 THREADS_ENABLER='#include "lo/lo_serverthread.h"'