diff --git a/lib/des/Makefile.am b/lib/des/Makefile.am
index e5208eacd..4b37a7533 100644
--- a/lib/des/Makefile.am
+++ b/lib/des/Makefile.am
@@ -3,7 +3,7 @@
 include $(top_srcdir)/Makefile.am.common
 
 lib_LTLIBRARIES = libdes.la
-libdes_la_LDFLAGS = -version-info 2:0:0
+libdes_la_LDFLAGS = -version-info 2:1:0
 
 include_HEADERS = des.h md4.h md5.h sha.h rc4.h