diff --git a/c/src/optman/Makefile.am b/c/src/optman/Makefile.am
index ab83c40cf9..14143e9549 100644
--- a/c/src/optman/Makefile.am
+++ b/c/src/optman/Makefile.am
@@ -70,8 +70,5 @@ no_timer_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
 
 all-local: $(PREINSTALL_FILES) $(TMPINSTALL_FILES)
 
-CLEANFILES =
-DISTCLEANFILES =
-
 include $(srcdir)/preinstall.am
 include $(top_srcdir)/automake/local.am