diff --git a/configure.ac b/configure.ac
index 09a08a8..7d441d9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -50,7 +50,7 @@ AC_SUBST(LIBISOFS_MICRO_VERSION)
 AC_SUBST(LIBISOFS_VERSION)
 
 dnl Libtool versioning
-dnl LT_RELEASE=$LIBISOFS_MAJOR_VERSION.$LIBISOFS_MINOR_VERSION
+LT_RELEASE=$LIBISOFS_MAJOR_VERSION.$LIBISOFS_MINOR_VERSION
 dnl 2019.11.23 development jump has happened
 dnl SONAME = 95 - 89 = 6 . Library name = libisofs.6.89.0
 LT_CURRENT=95