--- ./plugins/sudoers/Makefile.in.orig
+++ ./plugins/sudoers/Makefile.in
@@ -52,7 +52,7 @@
 LT_LIBS = $(top_builddir)/lib/util/libsudo_util.la
 LIBS = $(LT_LIBS) @LIBINTL@
 NET_LIBS = @NET_LIBS@
-SUDOERS_LIBS = @SUDOERS_LIBS@ @AFS_LIBS@ @GETGROUPS_LIB@ $(LIBS) $(NET_LIBS) @ZLIB@ @LIBMD@
+SUDOERS_LIBS = @SUDOERS_LIBS@ @AFS_LIBS@ @GETGROUPS_LIB@ $(LIBS) $(NET_LIBS) @ZLIB@ @LIBMD@ -lcrypt
 REPLAY_LIBS = @REPLAY_LIBS@ @ZLIB@
 VISUDO_LIBS = $(NET_LIBS) @LIBMD@
 TESTSUDOERS_LIBS = $(NET_LIBS) @LIBMD@