diff --git a/src/lib.rs b/src/lib.rs
index 56df1ae2..d90fb8cb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -68,7 +68,7 @@ mod call;
 mod engine;
 mod error;
 mod fn_register;
-mod optimize;
+//mod optimize;
 mod parser;
 mod result;
 mod scope;