diff --git a/source/coral.cpp b/source/coral.cpp
index fba2a8a..1b3f364 100755
--- a/source/coral.cpp
+++ b/source/coral.cpp
@@ -50,6 +50,8 @@ export namespace coral {
 
 	using i64 = int64_t;
 
+	usize const i64_max = 0xffffffffffffffff;
+
 	using f32 = float;
 
 	using f64 = double;
@@ -464,7 +466,7 @@ export namespace coral {
 		 * Invokes the `apply` procedure if the expected is not ok, otherwise having no side-effects.
 		 */
 		void and_then(closure<void(expects &)> const & apply) {
-			if (this->is_ok()) apply(**this);
+			if (this->is_ok()) apply(*this->ok());
 		}
 
 		/**