diff --git a/lib/com_err/Makefile.am b/lib/com_err/Makefile.am
index 54a7675f9..461be1527 100644
--- a/lib/com_err/Makefile.am
+++ b/lib/com_err/Makefile.am
@@ -17,12 +17,12 @@ include_HEADERS = com_err.h com_right.h
 
 compile_et_SOURCES = compile_et.c compile_et.h parse.y lex.l lex.h
 
-if do_roken_rename
-ES = snprintf.c strlcpy.c
-endif
-
 libcom_err_la_CPPFLAGS = $(ROKEN_RENAME)
-libcom_err_la_SOURCES = error.c com_err.c roken_rename.h $(ES)
+dist_libcom_err_la_SOURCES = error.c com_err.c roken_rename.h
+
+if do_roken_rename
+nodist_libcom_err_la_SOURCES = snprintf.c strlcpy.c
+endif
 
 $(compile_et_OBJECTS): parse.h parse.c ## XXX broken automake 1.4s