diff --git a/guile-readline/configure.in b/guile-readline/configure.in
index eb7b1b02b..b10d1a4b9 100644
--- a/guile-readline/configure.in
+++ b/guile-readline/configure.in
@@ -119,5 +119,11 @@ fi
 
 AC_CHECK_FUNCS(strdup)
 
+. ./LIBGUILEREADLINE-VERSION
+AC_SUBST(LIBGUILEREADLINE_INTERFACE_CURRENT)
+AC_SUBST(LIBGUILEREADLINE_INTERFACE_REVISION)
+AC_SUBST(LIBGUILEREADLINE_INTERFACE_AGE)
+AC_SUBST(LIBGUILEREADLINE_INTERFACE)
+
 AC_CONFIG_FILES(Makefile)
 AC_OUTPUT