diff --git a/tsk/Makefile.am b/tsk/Makefile.am
index 140fc86f472b09ba5427ae8af69fe584aba40855..b623dd937c4dcf9813746669216cba4dd314aa79 100644
--- a/tsk/Makefile.am
+++ b/tsk/Makefile.am
@@ -8,6 +8,6 @@ libtsk_la_LIBADD = base/libtskbase.la img/libtskimg.la \
     vs/libtskvs.la fs/libtskfs.la hashdb/libtskhashdb.la \
     auto/libtskauto.la pool/libtskpool.la util/libtskutil.la
 # current:revision:age
-libtsk_la_LDFLAGS = -version-info 20:4:1 $(LIBTSK_LDFLAGS)
+libtsk_la_LDFLAGS = -version-info 20:5:1 $(LIBTSK_LDFLAGS)
 
 EXTRA_DIST = tsk_tools_i.h docs/Doxyfile docs/*.dox docs/*.html