diff --git a/langkit/templates/astnode_types_ada.mako b/langkit/templates/astnode_types_ada.mako
index 5955dc8e5..1df4ba145 100644
--- a/langkit/templates/astnode_types_ada.mako
+++ b/langkit/templates/astnode_types_ada.mako
@@ -173,7 +173,7 @@
       base_name = cls.base().name()
    %>
 
-   type ${type_name} is ${"abstract" if cls.abstract else "" }
+   type ${type_name} is ${"abstract" if cls.abstract else ""}
       new ${cls.base().value_type_name()} with record
       ${node_fields(cls)}
    end record;