--- a/filter.c Fri Mar 30 18:54:29 2012 +0200 +++ b/filter.c Fri Mar 30 18:54:55 2012 +0200 @@ -149,7 +149,7 @@ close(read_pipe[1]); close(read_pipe[0]); execl(filter_par, filter_par, 0); - perror("execlp"); + perror("execl"); exit(-1); break; case -1: