X-Git-Url: http://nitlanguage.org

diff --git a/src/frontend/explain_assert.nit b/src/frontend/explain_assert.nit
index b2350a4..f8b4710 100644
--- a/src/frontend/explain_assert.nit
+++ b/src/frontend/explain_assert.nit
@@ -145,7 +145,9 @@ private class ExplainAssertVisitor
 		end
 
 		# Set the expression value aside
+		var old_parent = v_expr.parent
 		var expr = v_expr.make_var_read
+		if old_parent != null then old_parent.validate
 
 		# Protect nullable types
 		if mtype isa MNullType then