diff --git a/bin/version b/bin/version
index ee1372d33..717903969 100644
--- a/bin/version
+++ b/bin/version
@@ -1 +1 @@
-0.2.2
+0.2.3
diff --git a/src/frontends/lean/parser_config.cpp b/src/frontends/lean/parser_config.cpp
index 097ee9263..be895942e 100644
--- a/src/frontends/lean/parser_config.cpp
+++ b/src/frontends/lean/parser_config.cpp
@@ -122,9 +122,9 @@ token_table const & get_token_table(environment const & env) {
 serializer & operator<<(serializer & s, action const & a) {
     s << static_cast<char>(a.kind());
     switch (a.kind()) {
-    case action_kind::Skip: case action_kind::Binder: case action_kind::Binders:
+    case action_kind::Skip:
         break;
-    case action_kind::Expr:
+    case action_kind::Expr: case action_kind::Binder: case action_kind::Binders:
         s << a.rbp();
         break;
     case action_kind::Exprs:
@@ -159,9 +159,11 @@ action read_action(deserializer & d) {
     case action_kind::Skip:
         return notation::mk_skip_action();
     case action_kind::Binder:
-        return notation::mk_binder_action();
+        d >> rbp;
+        return notation::mk_binder_action(rbp);
     case action_kind::Binders:
-        return notation::mk_binders_action();
+        d >> rbp;
+        return notation::mk_binders_action(rbp);
     case action_kind::Expr:
         d >> rbp;
         return notation::mk_expr_action(rbp);
diff --git a/tests/lean/run/sub_bug.lean b/tests/lean/run/sub_bug.lean
new file mode 100644
index 000000000..f21bbba35
--- /dev/null
+++ b/tests/lean/run/sub_bug.lean
@@ -0,0 +1,3 @@
+import data.subtype data.nat
+open nat
+check { x : nat | x > 0}